doc(setup):Note need to install gpsbabel

[EVA-2020-02.git] / exec / bkgpslog

diff --git a/exec/bkgpslog b/exec/bkgpslog
index 04e41fff1546614d21e3ea038b5d53077122262c..d8eeff71d338c83b86ace5c22adfcd4808fb5e20 100755 (executable)
--- a/exec/bkgpslog
+++ b/exec/bkgpslog
@@ -11,7 +11,7 @@ dirTmpDefault="/dev/shm"; # Default parent of working directory
 scriptTimeStart=$(date +%Y%m%dT%H%M%S.%N);
 PATH="$HOME/.local/bin:$PATH";   # Add "$(systemd-path user-binaries)" path in case apps saved there
 scriptHostname=$(hostname);     # Save hostname of system running this script.
 scriptTimeStart=$(date +%Y%m%dT%H%M%S.%N);
 PATH="$HOME/.local/bin:$PATH";   # Add "$(systemd-path user-binaries)" path in case apps saved there
 scriptHostname=$(hostname);     # Save hostname of system running this script.

-scriptVersion="0.5.7";          # Define version of script.
+scriptVersion="0.5.8";          # Define version of script.

 scriptName="bkgpslog";          # Define basename of script file.
 scriptURL="https://gitlab.com/baltakatei/ninfacyzga-01"; # Define wesite hosting this script.
 ageVersion="1.0.0-beta2";       # Define version of age (encryption program)
 scriptName="bkgpslog";          # Define basename of script file.
 scriptURL="https://gitlab.com/baltakatei/ninfacyzga-01"; # Define wesite hosting this script.
 ageVersion="1.0.0-beta2";       # Define version of age (encryption program)


@@ -24,10 +24,13 @@ declare -a argRecPubKeys # for processArguments function
 # declare -a errorHistory # for correcting buffer lag
 
 ## Initialize variables
 # declare -a errorHistory # for correcting buffer lag
 
 ## Initialize variables

-OPTION_VERBOSE=""; OPTION_ENCRYPT=""; OPTION_COMPRESS=""; OPTION_TMPDIR="";
-errReset=0; BUFFER_TTL_ADJ_FLOAT="";
+optionVerbose=""; optionEncrypt=""; optionCompress=""; optionTmpDir="";
+errReset=0; bufferTTL_AdjFloat=""; scriptTTL="";

 
 #===BEGIN Declare local script functions===
 
 #===BEGIN Declare local script functions===

+yell() { echo "$0: $*" >&2; }      #o Yell, Die, Try Three-Fingered Claw technique
+die() { yell "$*"; exit 111; }     #o Ref/Attrib: https://stackoverflow.com/a/25515370
+try() { "$@" || die "cannot $*"; } #o 

 checkapp() {
     # Desc: If arg is a command, save result in assoc array 'appRollCall'
     # Usage: checkapp arg1 arg2 arg3 ...
 checkapp() {
     # Desc: If arg is a command, save result in assoc array 'appRollCall'
     # Usage: checkapp arg1 arg2 arg3 ...


@@ -128,13 +131,6 @@ checkdir() {
        return 1;
     fi
 } # Check that dir exists
        return 1;
     fi
 } # Check that dir exists

-
-# Yell, Die, Try Three-Fingered Claw technique
-# Ref/Attrib: https://stackoverflow.com/a/25515370
-yell() { echo "$0: $*" >&2; }
-die() { yell "$*"; exit 111; }
-try() { "$@" || die "cannot $*"; }
-

 echoerr() {
     echo "$@" 1>&2; # Define stderr echo function.
 } # Define stderr message function.
 echoerr() {
     echo "$@" 1>&2; # Define stderr echo function.
 } # Define stderr message function.


@@ -183,27 +179,22 @@ showVersion() {
     echoerr "$scriptVersion"
 } # Display script version.
 vbm() {
     echoerr "$scriptVersion"
 } # Display script version.
 vbm() {

+    # Description: Prints verbose message ("vbm") to stderr if optionVerbose is set to "true".

     # Usage: vbm "DEBUG:verbose message here"
     # Usage: vbm "DEBUG:verbose message here"

-    # Description: Prints verbose message ("vbm") to stderr if OPTION_VERBOSE is set to "true".
-    # Input:
-    #   - OPTION_VERBOSE  variable set by processArguments function. (ex: "true", "false")
-    #   - "$@"            positional arguments fed to this function.
+    # Version 0.1.1
+    # Input: arg1: string
+    #        vars: optionVerbose

     # Output: stderr
     # Output: stderr

-    # Script function dependencies: echoerr
-    # External function dependencies: echo
-    # Last modified: 2020-04-11T23:57Z
-    # Last modified by: Steven Baltakatei Sandoval
-    # License: GPLv3+
-    # Ref./Attrib:
-
-    if [ "$OPTION_VERBOSE" = "true" ]; then
-       FUNCTION_TIME=$(date --iso-8601=ns); # Save current time in nano seconds.
-       echoerr "[$FUNCTION_TIME] ""$*"; # Display argument text.
+    # Depends: echo 8, date 8
+
+    if [ "$optionVerbose" = "true" ]; then
+       functionTime=$(date --iso-8601=ns); # Save current time in nano seconds.
+       echo "[$functionTime] ""$*" 1>&2; # Display argument text.

     fi
 
     # End function
     return 0; # Function finished.
     fi
 
     # End function
     return 0; # Function finished.

-} # Verbose message display function.
+} # Displays message if optionVerbose true

 processArguments() {
     while [ ! $# -eq 0 ]; do   # While number of arguments ($#) is not (!) equal to (-eq) zero (0).
        #echoerr "DEBUG:Starting processArguments while loop."
 processArguments() {
     while [ ! $# -eq 0 ]; do   # While number of arguments ($#) is not (!) equal to (-eq) zero (0).
        #echoerr "DEBUG:Starting processArguments while loop."


@@ -211,16 +202,16 @@ processArguments() {
        case "$1" in
            -h | --help) showUsage; exit 1;; # Display usage.
            --version) showVersion; exit 1;; # Show version
        case "$1" in
            -h | --help) showUsage; exit 1;; # Display usage.
            --version) showVersion; exit 1;; # Show version

-           -v | --verbose) OPTION_VERBOSE="true"; vbm "DEBUG:Verbose mode enabled.";; # Enable verbose mode.
-           -o | --output) if [ -d "$2" ]; then DIR_OUT="$2"; vbm "DEBUG:DIR_OUT:$DIR_OUT"; shift; fi ;; # Define output directory.
-           -e | --encrypt) OPTION_ENCRYPT="true"; vbm "DEBUG:Encrypted output mode enabled.";; # Enable encryption
-           -r | --recipient) OPTION_RECIPIENTS="true"; argRecPubKeys+=("$2"); vbm "STATUS:pubkey added:""$2"; shift;; # Add recipients
-           -c | --compress) OPTION_COMPRESS="true"; vbm "DEBUG:Compressed output mode enabled.";; # Enable compression
+           -v | --verbose) optionVerbose="true"; vbm "DEBUG:Verbose mode enabled.";; # Enable verbose mode.
+           -o | --output) if [ -d "$2" ]; then dirOut="$2"; vbm "DEBUG:dirOut:$dirOut"; shift; fi ;; # Define output directory.
+           -e | --encrypt) optionEncrypt="true"; vbm "DEBUG:Encrypted output mode enabled.";; # Enable encryption
+           -r | --recipient) optionRecipients="true"; argRecPubKeys+=("$2"); vbm "STATUS:pubkey added:""$2"; shift;; # Add recipients
+           -c | --compress) optionCompress="true"; vbm "DEBUG:Compressed output mode enabled.";; # Enable compression

            -z | --time-zone) try setTimeZoneEV "$2"; shift;; # Set timestamp timezone
            -z | --time-zone) try setTimeZoneEV "$2"; shift;; # Set timestamp timezone

-           -t | --temp-dir) OPTION_TMPDIR="true" && argTempDirPriority="$2"; shift;; # Set time zone
-           -R | --recipient-dir) OPTION_RECIPIENTS="true"; OPTION_RECDIR="true" && argRecDir="$2"; shift;; # Add recipient watch dir
-           -b | --buffer-ttl) OPTION_CUSTOM_BUFFERTTL="true" && argCustomBufferTTL="$2"; shift;; # Set custom buffer period (default: 300 seconds)
-           -B | --script-ttl) OPTION_CUSTOM_SCRIPTTTL_TE="true" && argCustomScriptTTL="$2"; shift;; # Set custom script TTL (default: "day")
+           -t | --temp-dir) optionTmpDir="true" && argTempDirPriority="$2"; shift;; # Set time zone
+           -R | --recipient-dir) optionRecipients="true"; optionRecDir="true" && argRecDir="$2"; shift;; # Add recipient watch dir
+           -b | --buffer-ttl) optionCustomBufferTTL="true" && argCustomBufferTTL="$2"; shift;; # Set custom buffer period (default: 300 seconds)
+           -B | --script-ttl) optionCustomScriptTTL_TE="true" && argCustomScriptTTL="$2"; shift;; # Set custom script TTL (default: "day")

            *) echoerr "ERROR: Unrecognized argument: $1"; echoerr "STATUS:All arguments:$*"; exit 1;; # Handle unrecognized options.
        esac
        shift
            *) echoerr "ERROR: Unrecognized argument: $1"; echoerr "STATUS:All arguments:$*"; exit 1;; # Handle unrecognized options.
        esac
        shift


@@ -229,6 +220,7 @@ processArguments() {
 setTimeZoneEV(){
     # Desc: Set time zone environment variable TZ
     # Usage: setTimeZoneEV arg1
 setTimeZoneEV(){
     # Desc: Set time zone environment variable TZ
     # Usage: setTimeZoneEV arg1

+    # Version 0.1.1

     # Input: arg1: 'date'-compatible timezone string (ex: "America/New_York")
     #        TZDIR env var (optional; default: "/usr/share/zoneinfo")
     # Output: exports TZ
     # Input: arg1: 'date'-compatible timezone string (ex: "America/New_York")
     #        TZDIR env var (optional; default: "/usr/share/zoneinfo")
     # Output: exports TZ


@@ -237,8 +229,9 @@ setTimeZoneEV(){
     #         exit code 2 if unable to validate arg1
     # Depends: yell, printenv, bash 5
     # Tested on: Debian 10
     #         exit code 2 if unable to validate arg1
     # Depends: yell, printenv, bash 5
     # Tested on: Debian 10

-    ARG1="$1"
-    local tzDir returnState
+    local tzDir returnState argTimeZone
+
+    argTimeZone="$1"

     if ! [[ $# -eq 1 ]]; then
        yell "ERROR:Invalid argument count.";
        return 1;
     if ! [[ $# -eq 1 ]]; then
        yell "ERROR:Invalid argument count.";
        return 1;


@@ -252,12 +245,12 @@ setTimeZoneEV(){
     fi
     
     # Validate TZ string
     fi
     
     # Validate TZ string

-    if ! [[ -f "$tzDir"/"$ARG1" ]]; then
+    if ! [[ -f "$tzDir"/"$argTimeZone" ]]; then

        yell "ERROR:Invalid time zone argument.";
        return 2;
     else
     # Export ARG1 as TZ environment variable
        yell "ERROR:Invalid time zone argument.";
        return 2;
     else
     # Export ARG1 as TZ environment variable

-       TZ="$ARG1" && export TZ && returnState="true";
+       TZ="$argTimeZone" && export TZ && returnState="true";

     fi
 
     # Determine function return code
     fi
 
     # Determine function return code


@@ -267,29 +260,28 @@ setTimeZoneEV(){
 } # Exports TZ environment variable
 timeUntilNextDay(){
     # Desc: Report seconds until next day.
 } # Exports TZ environment variable
 timeUntilNextDay(){
     # Desc: Report seconds until next day.

-    # Version: 1.0.0
+    # Version: 1.0.2

     # Output: stdout: integer seconds until next day
     # Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0
     # Usage: timeUntilNextDay
     # Usage: if ! myTTL="$(timeUntilNextDay)"; then yell "ERROR in if statement"; exit 1; fi
     # Depends: date 8, echo 8, yell, try
     
     # Output: stdout: integer seconds until next day
     # Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0
     # Usage: timeUntilNextDay
     # Usage: if ! myTTL="$(timeUntilNextDay)"; then yell "ERROR in if statement"; exit 1; fi
     # Depends: date 8, echo 8, yell, try
     

-    local returnState TIME_CURRENT TIME_NEXT_DAY SECONDS_UNTIL_NEXT_DAY
-
-    TIME_CURRENT="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second.
-    TIME_NEXT_DAY="$(date -d "$TIME_CURRENT next day" --iso-8601=date)"; # Produce timestamp of beginning of tomorrow with resolution of 1 second.
-    SECONDS_UNTIL_NEXT_DAY="$(( $(date +%s -d "$TIME_NEXT_DAY") - $(date +%s -d "$TIME_CURRENT") ))" ; # Calculate seconds until closest future midnight (res. 1 second).
-    if [[ "$SECONDS_UNTIL_NEXT_DAY" -gt 0 ]]; then
+    local returnState timeCurrent timeNextDay secondsUntilNextDay returnState
+    timeCurrent="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second.
+    timeNextDay="$(date -d "$timeCurrent next day" --iso-8601=date)"; # Produce timestamp of beginning of tomorrow with resolution of 1 second.
+    secondsUntilNextDay="$(( $(date +%s -d "$timeNextDay") - $(date +%s -d "$timeCurrent") ))" ; # Calculate seconds until closest future midnight (res. 1 second).
+    if [[ "$secondsUntilNextDay" -gt 0 ]]; then

        returnState="true";
        returnState="true";

-    elif [[ "$SECONDS_UNTIL_NEXT_DAY" -eq 0 ]]; then
+    elif [[ "$secondsUntilNextDay" -eq 0 ]]; then

        returnState="warning_zero";
        yell "WARNING:Reported time until next day exactly zero.";
        returnState="warning_zero";
        yell "WARNING:Reported time until next day exactly zero.";

-    elif [[ "$SECONDS_UNTIL_NEXT_DAY" -lt 0 ]]; then
+    elif [[ "$secondsUntilNextDay" -lt 0 ]]; then

        returnState="warning_negative";
        yell "WARNING:Reported time until next day is negative.";
     fi
 
        returnState="warning_negative";
        yell "WARNING:Reported time until next day is negative.";
     fi
 

-    try echo "$SECONDS_UNTIL_NEXT_DAY"; # Report
+    try echo "$secondsUntilNextDay"; # Report

     
     # Determine function return code
     if [[ "$returnState" = "true" ]]; then
     
     # Determine function return code
     if [[ "$returnState" = "true" ]]; then


@@ -302,27 +294,27 @@ timeUntilNextDay(){
 } # Report seconds until next day
 timeUntilNextHour(){
     # Desc: Report seconds until next hour
 } # Report seconds until next day
 timeUntilNextHour(){
     # Desc: Report seconds until next hour

-    # Version 1.0.0
+    # Version 1.0.1

     # Output: stdout: integer seconds until next hour
     # Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0
     # Usage: timeUntilNextHour
     # Usage: if ! myTTL="$(timeUntilNextHour)"; then yell "ERROR in if statement"; exit 1; fi
     
     # Output: stdout: integer seconds until next hour
     # Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0
     # Usage: timeUntilNextHour
     # Usage: if ! myTTL="$(timeUntilNextHour)"; then yell "ERROR in if statement"; exit 1; fi
     

-    local returnState TIME_CURRENT TIME_NEXT_HOUR SECONDS_UNTIL_NEXT_HOUR
-    TIME_CURRENT="$(date --iso-8601=seconds)"; # Produce `date`-parsable current timestamp with resolution of 1 second.
-    TIME_NEXT_HOUR="$(date -d "$TIME_CURRENT next hour" --iso-8601=hours)"; # Produce `date`-parsable current time stamp with resolution of 1 second.
-    SECONDS_UNTIL_NEXT_HOUR="$(( $(date +%s -d "$TIME_NEXT_HOUR") - $(date +%s -d "$TIME_CURRENT") ))"; # Calculate seconds until next hour (res. 1 second).
-    if [[ "$SECONDS_UNTIL_NEXT_HOUR" -gt 0 ]]; then
+    local returnState timeCurrent timeNextHour secondsUntilNextHour
+    timeCurrent="$(date --iso-8601=seconds)"; # Produce `date`-parsable current timestamp with resolution of 1 second.
+    timeNextHour="$(date -d "$timeCurrent next hour" --iso-8601=hours)"; # Produce `date`-parsable current time stamp with resolution of 1 second.
+    secondsUntilNextHour="$(( $(date +%s -d "$timeNextHour") - $(date +%s -d "$timeCurrent") ))"; # Calculate seconds until next hour (res. 1 second).
+    if [[ "$secondsUntilNextHour" -gt 0 ]]; then

        returnState="true";
        returnState="true";

-    elif [[ "$SECONDS_UNTIL_NEXT_HOUR" -eq 0 ]]; then
+    elif [[ "$secondsUntilNextHour" -eq 0 ]]; then

        returnState="warning_zero";
        yell "WARNING:Reported time until next hour exactly zero.";
        returnState="warning_zero";
        yell "WARNING:Reported time until next hour exactly zero.";

-    elif [[ "$SECONDS_UNTIL_NEXT_HOUR" -lt 0 ]]; then
+    elif [[ "$secondsUntilNextHour" -lt 0 ]]; then

        returnState="warning_negative";
        yell "WARNING:Reported time until next hour is negative.";
        returnState="warning_negative";
        yell "WARNING:Reported time until next hour is negative.";

-    fi
+    fi;

 
 

-    try echo "$SECONDS_UNTIL_NEXT_HOUR"; # Report
+    try echo "$secondsUntilNextHour"; # Report

     
     # Determine function return code
     if [[ "$returnState" = "true" ]]; then
     
     # Determine function return code
     if [[ "$returnState" = "true" ]]; then


@@ -331,76 +323,76 @@ timeUntilNextHour(){
        return 1;
     elif [[ "$returnState" = "warning_negative" ]]; then
        return 2;
        return 1;
     elif [[ "$returnState" = "warning_negative" ]]; then
        return 2;

-    fi
+    fi;

 } # Report seconds until next hour
 dateTimeShort(){
     # Desc: Timestamp without separators (YYYYmmddTHHMMSS+zzzz)
     # Usage: dateTimeShort ([str date])
 } # Report seconds until next hour
 dateTimeShort(){
     # Desc: Timestamp without separators (YYYYmmddTHHMMSS+zzzz)
     # Usage: dateTimeShort ([str date])

-    # Version 1.1.0
+    # Version 1.1.1

     # Input: arg1: 'date'-parsable timestamp string (optional)
     # Output: stdout: timestamp (ISO-8601, no separators)
     # Depends: yell
     # Input: arg1: 'date'-parsable timestamp string (optional)
     # Output: stdout: timestamp (ISO-8601, no separators)
     # Depends: yell

-    local TIME_CURRENT TIME_CURRENT_SHORT argTime
+    local argTime timeCurrent timeInput timeCurrentShort

 
     argTime="$1";
     # Get Current Time
 
     argTime="$1";
     # Get Current Time

-    TIME_CURRENT="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second.
+    timeCurrent="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second.

     # Decide to parse current or supplied date
     ## Check if time argument empty
     if [[ -z "$argTime" ]]; then
        ## T: Time argument empty, use current time
     # Decide to parse current or supplied date
     ## Check if time argument empty
     if [[ -z "$argTime" ]]; then
        ## T: Time argument empty, use current time

-       TIME_INPUT="$TIME_CURRENT";
+       timeInput="$timeCurrent";

     else
        ## F: Time argument exists, validate time
        if date --date="$argTime" 1>/dev/null 2>&1; then
            ### T: Time argument is valid; use it
     else
        ## F: Time argument exists, validate time
        if date --date="$argTime" 1>/dev/null 2>&1; then
            ### T: Time argument is valid; use it

-           TIME_INPUT="$argTime";
+           timeInput="$argTime";

        else
            ### F: Time argument not valid; exit
        else
            ### F: Time argument not valid; exit

-           yell "ERROR:Invalid time argument supplied: \"$argTime\""; yell "Exiting."; exit 1;
+           yell "ERROR:Invalid time argument supplied. Exiting."; exit 1;

        fi
     fi
     # Construct and deliver separator-les date string
        fi
     fi
     # Construct and deliver separator-les date string

-    TIME_CURRENT_SHORT="$(date -d "$TIME_INPUT" +%Y%m%dT%H%M%S%z)";
-    echo "$TIME_CURRENT_SHORT";
+    timeCurrentShort="$(date -d "$timeInput" +%Y%m%dT%H%M%S%z)";
+    echo "$timeCurrentShort";

 } # Get YYYYmmddTHHMMSS±zzzz
 dateShort(){
     # Desc: Date without separators (YYYYmmdd)
     # Usage: dateShort ([str date])
 } # Get YYYYmmddTHHMMSS±zzzz
 dateShort(){
     # Desc: Date without separators (YYYYmmdd)
     # Usage: dateShort ([str date])

-    # Version: 1.1.0
+    # Version: 1.1.1

     # Input: arg1: 'date'-parsable timestamp string (optional)
     # Output: stdout: date (ISO-8601, no separators)
     # Depends: yell
     # Input: arg1: 'date'-parsable timestamp string (optional)
     # Output: stdout: date (ISO-8601, no separators)
     # Depends: yell

-    local TIME_CURRENT DATE_CURRENT_SHORT
+    local argTime timeCurrent timeInput dateCurrentShort

 
     argTime="$1";
     # Get Current Time
 
     argTime="$1";
     # Get Current Time

-    TIME_CURRENT="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second.
+    timeCurrent="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second.

     # Decide to parse current or supplied date
     ## Check if time argument empty
     if [[ -z "$argTime" ]]; then
        ## T: Time argument empty, use current time
     # Decide to parse current or supplied date
     ## Check if time argument empty
     if [[ -z "$argTime" ]]; then
        ## T: Time argument empty, use current time

-       TIME_INPUT="$TIME_CURRENT";
+       timeInput="$timeCurrent";

     else
        ## F: Time argument exists, validate time
        if date --date="$argTime" 1>/dev/null 2>&1; then
            ### T: Time argument is valid; use it
     else
        ## F: Time argument exists, validate time
        if date --date="$argTime" 1>/dev/null 2>&1; then
            ### T: Time argument is valid; use it

-           TIME_INPUT="$argTime";
+           timeInput="$argTime";

        else
            ### F: Time argument not valid; exit
        else
            ### F: Time argument not valid; exit

-           yell "ERROR:Invalid time argument supplied: \"$argTime\""; yell "Exiting."; exit 1;
+           yell "ERROR:Invalid time argument supplied. Exiting."; exit 1;

        fi
     fi
     # Construct and deliver separator-les date string    
        fi
     fi
     # Construct and deliver separator-les date string    

-    DATE_CURRENT_SHORT="$(date -d "$TIME_INPUT" +%Y%m%d)"; # Produce separator-less current date with resolution 1 day.
-    echo "$DATE_CURRENT_SHORT";
+    dateCurrentShort="$(date -d "$timeInput" +%Y%m%d)"; # Produce separator-less current date with resolution 1 day.
+    echo "$dateCurrentShort";

 } # Get YYYYmmdd
 timeDuration(){
     # Desc: Given seconds, output ISO-8601 duration string
     # Ref/Attrib: ISO-8601:2004(E), §4.4.4.2 Representations of time intervals by duration and context information
     # Note: "1 month" ("P1M") is assumed to be "30 days" (see ISO-8601:2004(E), §2.2.1.2)
     # Usage: timeDuration [1:seconds] ([2:precision])
 } # Get YYYYmmdd
 timeDuration(){
     # Desc: Given seconds, output ISO-8601 duration string
     # Ref/Attrib: ISO-8601:2004(E), §4.4.4.2 Representations of time intervals by duration and context information
     # Note: "1 month" ("P1M") is assumed to be "30 days" (see ISO-8601:2004(E), §2.2.1.2)
     # Usage: timeDuration [1:seconds] ([2:precision])

-    # Version: 1.0.3
+    # Version: 1.0.4

     # Input: arg1: seconds as base 10 integer >= 0  (ex: 3601)
     #        arg2: precision level (optional; default=2)
     # Output: stdout: ISO-8601 duration string (ex: "P1H1S", "P2Y10M15DT10H30M20S")
     # Input: arg1: seconds as base 10 integer >= 0  (ex: 3601)
     #        arg2: precision level (optional; default=2)
     # Output: stdout: ISO-8601 duration string (ex: "P1H1S", "P2Y10M15DT10H30M20S")


@@ -408,11 +400,12 @@ timeDuration(){
     #         exit code 1: error_input
     #         exit code 2: error_unknown
     # Example: 'timeDuration 111111 3' yields 'P1DT6H51M'
     #         exit code 1: error_input
     #         exit code 2: error_unknown
     # Example: 'timeDuration 111111 3' yields 'P1DT6H51M'

-    # Depends: date 8 (gnucoreutils), yell, 
-    local returnState argSeconds argPrecision remainder precision witherPrecision
+    # Depends: date 8, bash 5, yell,
+    local argSeconds argPrecision precision returnState remainder

     local fullYears fullMonths fullDays fullHours fullMinutes fullSeconds
     local fullYears fullMonths fullDays fullHours fullMinutes fullSeconds

-    local displayYears displayMonths displayDays displayHours displayMinutes displaySeconds

     local hasYears hasMonths hasDays hasHours hasMinutes hasSeconds
     local hasYears hasMonths hasDays hasHours hasMinutes hasSeconds

+    local witherPrecision output
+    local displayYears displayMonths displayDays displayHours displayMinutes displaySeconds

     
     argSeconds="$1"; # read arg1 (seconds)
     argPrecision="$2"; # read arg2 (precision)
     
     argSeconds="$1"; # read arg1 (seconds)
     argPrecision="$2"; # read arg2 (precision)


@@ -555,24 +548,24 @@ timeDuration(){
        displayDateTime="true"; else displayDateTime="false"; fi
     
     ## Construct duration output string
        displayDateTime="true"; else displayDateTime="false"; fi
     
     ## Construct duration output string

-    OUTPUT="P"
+    output="P"

     if $displayYears; then
     if $displayYears; then

-       OUTPUT=$OUTPUT$fullYears"Y"; fi
+       output=$output$fullYears"Y"; fi

     if $displayMonths; then
     if $displayMonths; then

-       OUTPUT=$OUTPUT$fullMonths"M"; fi
+       output=$output$fullMonths"M"; fi

     if $displayDays; then
     if $displayDays; then

-       OUTPUT=$OUTPUT$fullDays"D"; fi
+       output=$output$fullDays"D"; fi

     if $displayDateTime; then
     if $displayDateTime; then

-       OUTPUT=$OUTPUT"T"; fi
+       output=$output"T"; fi

     if $displayHours; then
     if $displayHours; then

-       OUTPUT=$OUTPUT$fullHours"H"; fi
+       output=$output$fullHours"H"; fi

     if $displayMinutes; then
     if $displayMinutes; then

-       OUTPUT=$OUTPUT$fullMinutes"M"; fi
+       output=$output$fullMinutes"M"; fi

     if $displaySeconds; then
     if $displaySeconds; then

-       OUTPUT=$OUTPUT$fullSeconds"S"; fi
+       output=$output$fullSeconds"S"; fi

 
     ## Output duration string to stdout
 
     ## Output duration string to stdout

-    echo "$OUTPUT" && returnState="true";
+    echo "$output" && returnState="true";

 
     #===Determine function return code===
     if [ "$returnState" = "true" ]; then
 
     #===Determine function return code===
     if [ "$returnState" = "true" ]; then


@@ -589,8 +582,10 @@ timeDuration(){
 displayMissing() {
     # Desc: Displays missing apps, files, and dirs
     # Usage: displayMissing
 displayMissing() {
     # Desc: Displays missing apps, files, and dirs
     # Usage: displayMissing

+    # Version 0.1.0

     # Input: associative arrays: appRollCall, fileRollCall, dirRollCall
     # Input: associative arrays: appRollCall, fileRollCall, dirRollCall

-    # Output: stderr messages
+    # Output: stderr: messages indicating missing apps, file, or dirs
+    # Depends: bash 5, checkAppFileDir()

     #==BEGIN Display errors==
     #===BEGIN Display Missing Apps===
     missingApps="Missing apps  :"
     #==BEGIN Display errors==
     #===BEGIN Display Missing Apps===
     missingApps="Missing apps  :"


@@ -646,24 +641,24 @@ magicSetScriptTTL() {
     #Desc: Sets script_TTL seconds from provided time_element string argument
     #Usage: magicSetScriptTTL [str time_element]
     #Input: arg1: string (Ex: scriptTTL_TE; "day" or "hour")
     #Desc: Sets script_TTL seconds from provided time_element string argument
     #Usage: magicSetScriptTTL [str time_element]
     #Input: arg1: string (Ex: scriptTTL_TE; "day" or "hour")

-    #Output: var: SCRIPT_TTL (integer seconds)
+    #Output: var: scriptTTL (integer seconds)

     #Depends: timeUntilNextHour, timeUntilNextDay
     local argTimeElement
     argTimeElement="$1"
     if [[ "$argTimeElement" = "day" ]]; then
            # Set script lifespan to end at start of next day
     #Depends: timeUntilNextHour, timeUntilNextDay
     local argTimeElement
     argTimeElement="$1"
     if [[ "$argTimeElement" = "day" ]]; then
            # Set script lifespan to end at start of next day

-       if ! SCRIPT_TTL="$(timeUntilNextDay)"; then
-           if [[ "$SCRIPT_TTL" -eq 0 ]]; then
-           ((SCRIPT_TTL++)); # Add 1 because 0 would cause 'timeout' to never timeout.
+       if ! scriptTTL="$(timeUntilNextDay)"; then
+           if [[ "$scriptTTL" -eq 0 ]]; then
+           ((scriptTTL++)); # Add 1 because 0 would cause 'timeout' to never timeout.

            else
            yell "ERROR: timeUntilNextDay exit code $?"; exit 1;
            fi;
        fi;
     elif [[ "$argTimeElement" = "hour" ]]; then
        # Set script lifespan to end at start of next hour
            else
            yell "ERROR: timeUntilNextDay exit code $?"; exit 1;
            fi;
        fi;
     elif [[ "$argTimeElement" = "hour" ]]; then
        # Set script lifespan to end at start of next hour

-       if ! SCRIPT_TTL="$(timeUntilNextHour)"; then
-           if [[ "$SCRIPT_TTL" -eq 0 ]]; then
-               ((SCRIPT_TTL++)); # Add 1 because 0 would cause 'timeout' to never timeout.
+       if ! scriptTTL="$(timeUntilNextHour)"; then
+           if [[ "$scriptTTL" -eq 0 ]]; then
+               ((scriptTTL++)); # Add 1 because 0 would cause 'timeout' to never timeout.

            else
                yell "ERROR: timeUntilNextHour exit code $?"; exit 1;
            fi;
            else
                yell "ERROR: timeUntilNextHour exit code $?"; exit 1;
            fi;


@@ -675,33 +670,33 @@ magicSetScriptTTL() {
 checkMakeTar() {
     # Desc: Checks that a valid tar archive exists, creates one otherwise
     # Usage: checkMakeTar [ path ]
 checkMakeTar() {
     # Desc: Checks that a valid tar archive exists, creates one otherwise
     # Usage: checkMakeTar [ path ]

-    # Version: 1.0.1
+    # Version: 1.0.2

     # Input: arg1: path of tar archive
     # Output: exit code 0 : tar readable
     #         exit code 1 : tar missing; created
     #         exit code 2 : tar not readable; moved; replaced
     # Input: arg1: path of tar archive
     # Output: exit code 0 : tar readable
     #         exit code 1 : tar missing; created
     #         exit code 2 : tar not readable; moved; replaced

-    # Depends: try, tar, date
-    local PATH_TAR returnFlag0 returnFlag1 returnFlag2
-    PATH_TAR="$1"
+    # Depends: bash 5, date 8, tar 1, try()
+    local pathTar returnFlag0 returnFlag1 returnFlag2
+    pathTar="$1";

 
     # Check if file is a valid tar archive
 
     # Check if file is a valid tar archive

-    if tar --list --file="$PATH_TAR" 1>/dev/null 2>&1; then
+    if tar --list --file="$pathTar" 1>/dev/null 2>&1; then

        ## T1: return success
        returnFlag0="tar valid";
     else
        ## F1: Check if file exists
        ## T1: return success
        returnFlag0="tar valid";
     else
        ## F1: Check if file exists

-       if [[ -f "$PATH_TAR" ]]; then
+       if [[ -f "$pathTar" ]]; then

            ### T: Rename file
            ### T: Rename file

-           try mv "$PATH_TAR" "$PATH_TAR""--broken--""$(date +%Y%m%dT%H%M%S)" && \
+           try mv "$pathTar" "$pathTar""--broken--""$(date +%Y%m%dT%H%M%S)" && \

                returnFlag1="tar moved";
        else
            ### F: -
            :
                returnFlag1="tar moved";
        else
            ### F: -
            :

-       fi
+       fi;

        ## F2: Create tar archive, return 0
        ## F2: Create tar archive, return 0

-       try tar --create --file="$PATH_TAR" --files-from=/dev/null && \
+       try tar --create --file="$pathTar" --files-from=/dev/null && \

            returnFlag2="tar created";
            returnFlag2="tar created";

-    fi
+    fi;

     
     # Determine function return code
     if [[ "$returnFlag0" = "tar valid" ]]; then
     
     # Determine function return code
     if [[ "$returnFlag0" = "tar valid" ]]; then


@@ -710,12 +705,12 @@ checkMakeTar() {
        return 1; # tar missing so created
     elif [[ "$returnFlag2" = "tar created" ]] && [[ "$returnFlag1" = "tar moved" ]]; then
        return 2; # tar not readable so moved; replaced
        return 1; # tar missing so created
     elif [[ "$returnFlag2" = "tar created" ]] && [[ "$returnFlag1" = "tar moved" ]]; then
        return 2; # tar not readable so moved; replaced

-    fi
+    fi;

 } # checks if arg1 is tar; creates one otherwise
 appendArgTar(){
     # Desc: Writes first argument to temporary file with arguments as options, then appends file to tar
     # Usage: appendArgTar "$(echo "Data to be written.")" [name of file to be inserted] [tar path] [temp dir] ([cmd1] [cmd2] [cmd3] [cmd4]...)
 } # checks if arg1 is tar; creates one otherwise
 appendArgTar(){
     # Desc: Writes first argument to temporary file with arguments as options, then appends file to tar
     # Usage: appendArgTar "$(echo "Data to be written.")" [name of file to be inserted] [tar path] [temp dir] ([cmd1] [cmd2] [cmd3] [cmd4]...)

-    # Version: 1.0.3
+    # Version: 1.0.6

     # Input: arg1: data to be written
     #        arg2: file name of file to be inserted into tar
     #        arg3: tar archive path (must exist first)
     # Input: arg1: data to be written
     #        arg2: file name of file to be inserted into tar
     #        arg3: tar archive path (must exist first)


@@ -726,52 +721,54 @@ appendArgTar(){
     #          appendArgTar "$(cat /tmp/largefile1.gpg)" "largefile1" $HOME/archive.tar /tmp "gpg --decrypt" &
     #          appendArgTar "$(cat /tmp/largefile2.gpg)" "largefile2" $HOME/archive.tar /tmp "gpg --decrypt" &
     #          appendArgTar "$(cat /tmp/largefile3.gpg)" "largefile3" $HOME/archive.tar /tmp "gpg --decrypt" &
     #          appendArgTar "$(cat /tmp/largefile1.gpg)" "largefile1" $HOME/archive.tar /tmp "gpg --decrypt" &
     #          appendArgTar "$(cat /tmp/largefile2.gpg)" "largefile2" $HOME/archive.tar /tmp "gpg --decrypt" &
     #          appendArgTar "$(cat /tmp/largefile3.gpg)" "largefile3" $HOME/archive.tar /tmp "gpg --decrypt" &

-    # Depends: bash 5
+    # Depends: bash 5, tar 1, yell()

     # Ref/Attrib: Using 'eval' to construct command strings https://askubuntu.com/a/476533
 
     # Ref/Attrib: Using 'eval' to construct command strings https://askubuntu.com/a/476533
 

+    local fn fileName tarPath tmpDir cmd0 cmd1 cmd2 cmd3 cmd4
+

     # Save function name
     # Save function name

-    local FN="${FUNCNAME[0]}";
-    #yell "DEBUG:STATUS:$FN:Finished appendArgTar()."
+    fn="${FUNCNAME[0]}";
+    #yell "DEBUG:STATUS:$fn:Finished appendArgTar()."

     
     # Set file name
     
     # Set file name

-    if ! [ -z "$2" ]; then FILENAME="$2"; else yell "ERROR:$FN:Not enough arguments."; exit 1; fi
+    if ! [ -z "$2" ]; then fileName="$2"; else yell "ERROR:$fn:Not enough arguments."; exit 1; fi

     
     # Check tar path is a file
     
     # Check tar path is a file

-    if [ -f "$3" ]; then TAR_PATH="$3"; else yell "ERROR:$FN:Tar archive arg not a file."; exit 1; fi
+    if [ -f "$3" ]; then tarPath="$3"; else yell "ERROR:$fn:Tar archive arg not a file."; exit 1; fi

        
     # Check temp dir arg
        
     # Check temp dir arg

-    if ! [ -z "$4" ]; then TMP_DIR="$4"; else yell "ERROR:$FN:No temporary working dir set."; exit 1; fi
+    if ! [ -z "$4" ]; then tmpDir="$4"; else yell "ERROR:$fn:No temporary working dir set."; exit 1; fi

     
     # Set command strings
     
     # Set command strings

-    if ! [ -z "$5" ]; then CMD1="$5"; else CMD1="tee /dev/null "; fi # command string 1
-    if ! [ -z "$6" ]; then CMD2="$6"; else CMD2="tee /dev/null "; fi # command string 2
-    if ! [ -z "$7" ]; then CMD3="$7"; else CMD3="tee /dev/null "; fi # command string 3
-    if ! [ -z "$8" ]; then CMD4="$8"; else CMD4="tee /dev/null "; fi # command string 4
+    if ! [ -z "$5" ]; then cmd1="$5"; else cmd1="cat "; fi # command string 1
+    if ! [ -z "$6" ]; then cmd2="$6"; else cmd2="cat "; fi # command string 2
+    if ! [ -z "$7" ]; then cmd3="$7"; else cmd3="cat "; fi # command string 3
+    if ! [ -z "$8" ]; then cmd4="$8"; else cmd4="cat "; fi # command string 4

 
     # Input command
 
     # Input command

-    CMD0="echo \"\$1\""
+    cmd0="echo \"\$1\""

 
     # # Debug
 
     # # Debug

-    # yell "DEBUG:STATUS:$FN:CMD0:$CMD0"
-    # yell "DEBUG:STATUS:$FN:CMD1:$CMD1"
-    # yell "DEBUG:STATUS:$FN:CMD2:$CMD2"
-    # yell "DEBUG:STATUS:$FN:CMD3:$CMD3"
-    # yell "DEBUG:STATUS:$FN:CMD4:$CMD4"
-    # yell "DEBUG:STATUS:$FN:FILENAME:$FILENAME"
-    # yell "DEBUG:STATUS:$FN:TAR_PATH:$TAR_PATH"
-    # yell "DEBUG:STATUS:$FN:TMP_DIR:$TMP_DIR"
+    # yell "DEBUG:STATUS:$fn:cmd0:$cmd0"
+    # yell "DEBUG:STATUS:$fn:cmd1:$cmd1"
+    # yell "DEBUG:STATUS:$fn:cmd2:$cmd2"
+    # yell "DEBUG:STATUS:$fn:cmd3:$cmd3"
+    # yell "DEBUG:STATUS:$fn:cmd4:$cmd4"
+    # yell "DEBUG:STATUS:$fn:fileName:$fileName"
+    # yell "DEBUG:STATUS:$fn:tarPath:$tarPath"
+    # yell "DEBUG:STATUS:$fn:tmpDir:$tmpDir"

     
     # Write to temporary working dir
     
     # Write to temporary working dir

-    eval "$CMD0"" | ""$CMD1"" | ""$CMD2"" | ""$CMD3"" | ""$CMD4" > "$TMP_DIR"/"$FILENAME";
+    eval "$cmd0 | $cmd1 | $cmd2 | $cmd3 | $cmd4" > "$tmpDir"/"$fileName";

 
     # Append to tar
 
     # Append to tar

-    try tar --append --directory="$TMP_DIR" --file="$TAR_PATH" "$FILENAME";
-    #yell "DEBUG:STATUS:$FN:Finished appendArgTar()."
+    try tar --append --directory="$tmpDir" --file="$tarPath" "$fileName";
+    #yell "DEBUG:STATUS:$fn:Finished appendArgTar()."

 } # Append Bash var to file appended to Tar archive
 appendFileTar(){
     # Desc: Processes first file and then appends to tar
     # Usage: appendFileTar [file path] [name of file to be inserted] [tar path] [temp dir] ([cmd1] [cmd2] [cmd3] [cmd4]...)
 } # Append Bash var to file appended to Tar archive
 appendFileTar(){
     # Desc: Processes first file and then appends to tar
     # Usage: appendFileTar [file path] [name of file to be inserted] [tar path] [temp dir] ([cmd1] [cmd2] [cmd3] [cmd4]...)

-    # Version: 1.0.2
+    # Version: 1.0.3

     # Input: arg1: path of file to be (processed and) written
     #        arg2: name to use for file inserted into tar
     #        arg3: tar archive path (must exist first)
     # Input: arg1: path of file to be (processed and) written
     #        arg2: name to use for file inserted into tar
     #        arg3: tar archive path (must exist first)


@@ -782,43 +779,45 @@ appendFileTar(){
     #          appendFileTar /tmp/largefile1.gpg "largefile1" $HOME/archive.tar /tmp "gpg --decrypt" &
     #          appendFileTar /tmp/largefile2.gpg "largefile2" $HOME/archive.tar /tmp "gpg --decrypt" &
     #          appendFileTar /tmp/largefile3.gpg "largefile3" $HOME/archive.tar /tmp "gpg --decrypt" &
     #          appendFileTar /tmp/largefile1.gpg "largefile1" $HOME/archive.tar /tmp "gpg --decrypt" &
     #          appendFileTar /tmp/largefile2.gpg "largefile2" $HOME/archive.tar /tmp "gpg --decrypt" &
     #          appendFileTar /tmp/largefile3.gpg "largefile3" $HOME/archive.tar /tmp "gpg --decrypt" &

-    # Depends: bash 5
+    # Depends: bash 5, tar 1, yell()
+
+    local fn fileName tarPath tmpDir

 
     # Save function name
 
     # Save function name

-    local FN="${FUNCNAME[0]}";
-    #yell "DEBUG:STATUS:$FN:Finished appendFileTar()."
+    fn="${FUNCNAME[0]}";
+    #yell "DEBUG:STATUS:$fn:Finished appendFileTar()."

     
     # Set file name
     
     # Set file name

-    if ! [ -z "$2" ]; then FILENAME="$2"; else yell "ERROR:$FN:Not enough arguments."; exit 1; fi
+    if ! [ -z "$2" ]; then fileName="$2"; else yell "ERROR:$fn:Not enough arguments."; exit 1; fi

     # Check tar path is a file
     # Check tar path is a file

-    if [ -f "$3" ]; then TAR_PATH="$3"; else yell "ERROR:$FN:Tar archive arg not a file."; exit 1; fi
+    if [ -f "$3" ]; then tarPath="$3"; else yell "ERROR:$fn:Tar archive arg not a file:$3"; exit 1; fi

     # Check temp dir arg
     # Check temp dir arg

-    if ! [ -z "$4" ]; then TMP_DIR="$4"; else yell "ERROR:$FN:No temporary working dir set."; exit 1; fi
+    if ! [ -z "$4" ]; then tmpDir="$4"; else yell "ERROR:$fn:No temporary working dir set."; exit 1; fi

     # Set command strings
     # Set command strings

-    if ! [ -z "$5" ]; then CMD1="$5"; else CMD1="tee /dev/null "; fi # command string 1
-    if ! [ -z "$6" ]; then CMD2="$6"; else CMD2="tee /dev/null "; fi # command string 2
-    if ! [ -z "$7" ]; then CMD3="$7"; else CMD3="tee /dev/null "; fi # command string 3
-    if ! [ -z "$8" ]; then CMD4="$8"; else CMD4="tee /dev/null "; fi # command string 4
+    if ! [ -z "$5" ]; then cmd1="$5"; else cmd1="cat "; fi # command string 1
+    if ! [ -z "$6" ]; then cmd2="$6"; else cmd2="cat "; fi # command string 2
+    if ! [ -z "$7" ]; then cmd3="$7"; else cmd3="cat "; fi # command string 3
+    if ! [ -z "$8" ]; then cmd4="$8"; else cmd4="cat "; fi # command string 4

 
     # Input command string
 
     # Input command string

-    CMD0="cat \"\$1\""
+    cmd0="cat \"\$1\""

     
     # # Debug
     
     # # Debug

-    # yell "DEBUG:STATUS:$FN:CMD0:$CMD0"
-    # yell "DEBUG:STATUS:$FN:CMD1:$CMD1"
-    # yell "DEBUG:STATUS:$FN:CMD2:$CMD2"
-    # yell "DEBUG:STATUS:$FN:CMD3:$CMD3"
-    # yell "DEBUG:STATUS:$FN:CMD4:$CMD4"
-    # yell "DEBUG:STATUS:$FN:FILENAME:$FILENAME"
-    # yell "DEBUG:STATUS:$FN:TAR_PATH:$TAR_PATH"
-    # yell "DEBUG:STATUS:$FN:TMP_DIR:$TMP_DIR"
+    # yell "DEBUG:STATUS:$fn:cmd0:$cmd0"
+    # yell "DEBUG:STATUS:$fn:cmd1:$cmd1"
+    # yell "DEBUG:STATUS:$fn:cmd2:$cmd2"
+    # yell "DEBUG:STATUS:$fn:cmd3:$cmd3"
+    # yell "DEBUG:STATUS:$fn:cmd4:$cmd4"
+    # yell "DEBUG:STATUS:$fn:fileName:$fileName"
+    # yell "DEBUG:STATUS:$fn:tarPath:$tarPath"
+    # yell "DEBUG:STATUS:$fn:tmpDir:$tmpDir"

     
     # Write to temporary working dir
     
     # Write to temporary working dir

-    eval "$CMD0 | $CMD1 | $CMD2 | $CMD3 | $CMD4" > "$TMP_DIR"/"$FILENAME";
+    eval "$cmd0 | $cmd1 | $cmd2 | $cmd3 | $cmd4" > "$tmpDir"/"$fileName";

 
     # Append to tar
 
     # Append to tar

-    try tar --append --directory="$TMP_DIR" --file="$TAR_PATH" "$FILENAME";
-    #yell "DEBUG:STATUS:$FN:Finished appendFileTar()."
+    try tar --append --directory="$tmpDir" --file="$tarPath" "$fileName";
+    #yell "DEBUG:STATUS:$fn:Finished appendFileTar()."

 } # Append file to Tar archive
 checkAgePubkey() {
     # Desc: Checks if string is an age-compatible pubkey
 } # Append file to Tar archive
 checkAgePubkey() {
     # Desc: Checks if string is an age-compatible pubkey


@@ -841,19 +840,21 @@ checkAgePubkey() {
 validateInput() {
     # Desc: Validates Input
     # Usage: validateInput [str input] [str input type]
 validateInput() {
     # Desc: Validates Input
     # Usage: validateInput [str input] [str input type]

-    # Version: 0.3.0
+    # Version: 0.3.1

     # Input: arg1: string to validate
     #        arg2: string specifying input type (ex:"ssh_pubkey")
     # Output: return code 0: if input string matched specified string type
     # Input: arg1: string to validate
     #        arg2: string specifying input type (ex:"ssh_pubkey")
     # Output: return code 0: if input string matched specified string type

-    # Depends: bash 5, yell
+    # Depends: bash 5, yell()
+
+    local fn argInput argType

 
     # Save function name
 
     # Save function name

-    local FN="${FUNCNAME[0]}";
+    fn="${FUNCNAME[0]}";

 
     # Process arguments
     argInput="$1";
     argType="$2";
 
     # Process arguments
     argInput="$1";
     argType="$2";

-    if [[ $# -gt 2 ]]; then yell "ERROR:$0:$FN:Too many arguments."; exit 1; fi;
+    if [[ $# -gt 2 ]]; then yell "ERROR:$0:$fn:Too many arguments."; exit 1; fi;

 
     # Check for blank
     if [[ -z "$argInput" ]]; then return 1; fi
 
     # Check for blank
     if [[ -z "$argInput" ]]; then return 1; fi


@@ -893,68 +894,68 @@ validateInput() {
 timeEpochNS() {
     # Desc: Get epoch nanoseconds
     # Usage: timeEpochNS
 timeEpochNS() {
     # Desc: Get epoch nanoseconds
     # Usage: timeEpochNS

-    # Version 0.2.2
+    # Version 0.2.3

     # Input: arg1: 'date'-parsable timestamp string (optional)
     # Output: Nanoseconds since 1970-01-01
     # Input: arg1: 'date'-parsable timestamp string (optional)
     # Output: Nanoseconds since 1970-01-01

-    # Depends: date 8, yell()
+    # Depends: date 8, cut 8, yell()

     # Ref/Attrib: Force base 10 Bash arith with '10#'. https://stackoverflow.com/a/24777667
     # Ref/Attrib: Force base 10 Bash arith with '10#'. https://stackoverflow.com/a/24777667

-    local TIME_CURRENT TIME_INPUT TIME_EPOCH_FLOAT TIME_EPOCH_NSFRAC
-    local TIME_EPOCH_NS
+    local argTime timeCurrent timeInput timeEpochFloat timeEpochInt
+    local timeEpochNsFrac timeEpochNs

 
     argTime="$1";
 
     # Get Current Time
 
     argTime="$1";
 
     # Get Current Time

-    TIME_CURRENT="$(date --iso-8601=ns)"; # Produce `date`-parsable current timestamp with resolution of 1 nanosecond.
+    timeCurrent="$(date --iso-8601=ns)"; # Produce `date`-parsable current timestamp with resolution of 1 nanosecond.

 
     # Decide to parse current or supplied time
     ## Check if time argument empty
     if [[ -z "$argTime" ]]; then
        ## T: Time argument empty, use current time
 
     # Decide to parse current or supplied time
     ## Check if time argument empty
     if [[ -z "$argTime" ]]; then
        ## T: Time argument empty, use current time

-       TIME_INPUT="$TIME_CURRENT";
+       timeInput="$timeCurrent";

     else
        ## F: Time argument exists, validate time
        if date --date="$argTime" 1>/dev/null 2>&1; then
            ### T: Time argument is valid; use it
     else
        ## F: Time argument exists, validate time
        if date --date="$argTime" 1>/dev/null 2>&1; then
            ### T: Time argument is valid; use it

-           TIME_INPUT="$argTime";
+           timeInput="$argTime";

        else
            ### F: Time argument not valid; exit
            yell "ERROR:Invalid time argument supplied. Exiting."; exit 1;
        fi;
     fi;
     # Construct and deliver nanoseconds since 1970-01-01    
        else
            ### F: Time argument not valid; exit
            yell "ERROR:Invalid time argument supplied. Exiting."; exit 1;
        fi;
     fi;
     # Construct and deliver nanoseconds since 1970-01-01    

-    TIME_EPOCH_FLOAT="$(date --date="$TIME_INPUT" +%s.%N)"; # Save ssss.NNNNNNNNN
-    TIME_EPOCH_INT="$(echo "$TIME_EPOCH_FLOAT" | cut -d. -f1)"; # Get ssss
-    TIME_EPOCH_NSFRAC="$(echo "$TIME_EPOCH_FLOAT" | cut -d. -f2)"; # Get NNNNNNNNN
-    TIME_EPOCH_NS="$(( (10#"$TIME_EPOCH_INT" * 10**9) + (10#"$TIME_EPOCH_NSFRAC") ))";
-    echo "$TIME_EPOCH_NS";
+    timeEpochFloat="$(date --date="$timeInput" +%s.%N)"; # Save ssss.NNNNNNNNN
+    timeEpochInt="$(echo "$timeEpochFloat" | cut -d. -f1)"; # Get ssss
+    timeEpochNsFrac="$(echo "$timeEpochFloat" | cut -d. -f2)"; # Get NNNNNNNNN
+    timeEpochNs="$(( (10#"$timeEpochInt" * 10**9) + (10#"$timeEpochNsFrac") ))";
+    echo "$timeEpochNs";

 } # Nanoseconds since 1970-01-01
 magicBufferSleepPID() {
     # Desc: Compensates for lag so buffer rounds start every bufferTTL seconds
 } # Nanoseconds since 1970-01-01
 magicBufferSleepPID() {
     # Desc: Compensates for lag so buffer rounds start every bufferTTL seconds

-    # Input: vars: bufferTTL, errResetx10e3, K_P, T_I, T_D
-    # # Input: array: errorHistory
-    # Output: vars: BUFFER_TTL_ADJ_FLOAT
+    # Input: vars: bufferTTL, errReset
+    # # Input: array: errorHistory errResetx10e3
+    # Output: vars: bufferTTL_AdjFloat

     # Re/Attrib: https://en.wikipedia.org/wiki/PID_controller#Standard_versus_parallel_(ideal)_form
     # Re/Attrib: https://en.wikipedia.org/wiki/PID_controller#Standard_versus_parallel_(ideal)_form

-    local BUFFER_TTL_NS
-    local timeBufferStartNS timeBufferStartNSExp errNS errNSx10e3
-    local errResetx10e3 errRatex10e3 ADJ BUFFER_TTL_ADJ_NS BUFFER_TTL_ADJ_INT
-    local BUFFER_TTL_ADJ_FLOATFRAC
+    local buffer_ttl_ns k_p t_i t_d
+    local timeBufferStartNS timeBufferStartNSExp errNS errReset errRate
+    local adj buffer_ttl_adj_ns buffer_ttl_adj_int buffer_ttl_adj_floatfrac
+    # local errNSx10e3 errResetx10e3 errRatex10e3

     # local errorHistorySize
     
     # ## Define errorHistorySize
     # errorHistorySize=100;
     # local errorHistorySize
     
     # ## Define errorHistorySize
     # errorHistorySize=100;

-    ## Define BUFFER_TTL in nanoseconds
-    BUFFER_TTL_NS=$((BUFFER_TTL * 10**9)) && vbm "BUFFER_TTL_NS:$BUFFER_TTL_NS";
+    ## Define bufferTTL in nanoseconds
+    buffer_ttl_ns=$((bufferTTL * 10**9)) && vbm "buffer_ttl_ns:$buffer_ttl_ns";

 
     ### PID Control factors
 
     ### PID Control factors

-    K_P=1; # Gain for compensating buffer round lag
-    T_I="$(((4)*BUFFER_TTL_NS/(1)))"; # Consider this number of past nanoseconds to eliminate error
-    T_D="$(((1)*BUFFER_TTL_NS/(1)))"; # Predict value this number of nanoseconds into the future
+    k_p=1; # Gain for compensating buffer round lag
+    t_i="$(((4)*buffer_ttl_ns/(1)))"; # Consider this number of past nanoseconds to eliminate error
+    t_d="$(((1)*buffer_ttl_ns/(1)))"; # Predict value this number of nanoseconds into the future

     
     # Calculate Error, errNS, in nanoseconds
     ## Get current time
     timeBufferStartNS="$(timeEpochNS)" && vbm "timeBufferStartNS   :$timeBufferStartNS";
     
     # Calculate Error, errNS, in nanoseconds
     ## Get current time
     timeBufferStartNS="$(timeEpochNS)" && vbm "timeBufferStartNS   :$timeBufferStartNS";

-    ## Calculate expected time (from start time, current buffer round number, nominal BUFFER_TTL)
-    timeBufferStartNSExp="$(( (timeBufferFirstNS) + (BUFFER_TTL_NS * bufferRound) ))" && vbm "timeBufferStartNSExp:$timeBufferStartNSExp";
+    ## Calculate expected time (from start time, current buffer round number, nominal bufferTTL)
+    timeBufferStartNSExp="$(( (timeBufferFirstNS) + (buffer_ttl_ns * bufferRound) ))" && vbm "timeBufferStartNSExp:$timeBufferStartNSExp";

     ## Calculate error (diff between timeBufferStartNSExp and timeBufferStartNS; usually negative)
     errNS="$(( timeBufferStartNSExp - timeBufferStartNS ))" && vbm "errNS:$errNS";
 #    errNSx10e3="$((errNS*10**3))" && vbm "errNSx10e3:$errNSx10e3";
     ## Calculate error (diff between timeBufferStartNSExp and timeBufferStartNS; usually negative)
     errNS="$(( timeBufferStartNSExp - timeBufferStartNS ))" && vbm "errNS:$errNS";
 #    errNSx10e3="$((errNS*10**3))" && vbm "errNSx10e3:$errNSx10e3";


@@ -968,154 +969,154 @@ magicBufferSleepPID() {
     # done;
 
     # Calculate errReset in nanoseconds^2
     # done;
 
     # Calculate errReset in nanoseconds^2

-    ## errReset = int(errHistory(t),wrt(delta_BUFFER_TTL))
+    ## errReset = int(errHistory(t),wrt(delta_buffer_ttl))

     ## Integrate errorHistory with respect to time
     # for value in "${errorHistory[@]}"; do
     ## Integrate errorHistory with respect to time
     # for value in "${errorHistory[@]}"; do

-    #  errReset=$(( errReset + ( value*BUFFER_TTL_NS ) ));
+    #  errReset=$(( errReset + ( value*buffer_ttl_ns ) ));

     # done;
     vbm "errReset(orig):$errReset"
     # done;
     vbm "errReset(orig):$errReset"

-    errReset="$(( (errReset + (errNS*BUFFER_TTL_NS)) ))" && vbm "errReset(post):$errReset";
-#    errResetx10e3="$(( ( errResetx10e3 + ( errNSx10e3 * BUFFER_TTL_NS ) )*10**3 ))" && vbm "errResetx10e3:$errResetx10e3";
+    errReset="$(( (errReset + (errNS*buffer_ttl_ns)) ))" && vbm "errReset(post):$errReset";
+#    errResetx10e3="$(( ( errResetx10e3 + ( errNSx10e3 * buffer_ttl_ns ) )*10**3 ))" && vbm "errResetx10e3:$errResetx10e3";

 
     # Calculate errRate in nanoseconds per nanosecond
 
     # Calculate errRate in nanoseconds per nanosecond

-    errRate="$(( errNS / BUFFER_TTL_NS ))" && vbm "errRate:$errRate";
-#    errRatex10e3="$(( ( errNSx10e3 ) / BUFFER_TTL_NS ))" && vbm "errRatex10e3:$errRatex10e3";
+    errRate="$(( errNS / buffer_ttl_ns ))" && vbm "errRate:$errRate";
+#    errRatex10e3="$(( ( errNSx10e3 ) / buffer_ttl_ns ))" && vbm "errRatex10e3:$errRatex10e3";

 
     # Debug
     vbm "errNS       :$errNS";
 
     # Debug
     vbm "errNS       :$errNS";

-    vbm "errResetTerm:$((errReset/T_I))";
-    vbm "errRateTerm :$((errRate*T_D))";
+    vbm "errResetTerm:$((errReset/t_i))";
+    vbm "errRateTerm :$((errRate*t_d))";

     
     # Calculate PID control signal
     
     # Calculate PID control signal

-    ## ADJ = K_P * (errNS + errReset/T_I + errRate*T_D)
-    ADJ="$(( K_P*(errNS + errReset/T_I + errRate*T_D) ))" && vbm "ADJ:$ADJ";
-#    ADJ="$((K_P*(errNSx10e3 + (errResetx10e3/T_I) + (errRatex10e3*T_D) )/(10**3)))" && vbm "ADJ:$ADJ";
+    ## adj = k_p * (errNS + errReset/t_i + errRate*t_d)
+    adj="$(( k_p*(errNS + errReset/t_i + errRate*t_d) ))" && vbm "adj:$adj";
+#    adj="$((k_p*(errNSx10e3 + (errResetx10e3/t_i) + (errRatex10e3*t_d) )/(10**3)))" && vbm "adj:$adj";

 
 

-    # Calculate BUFFER_TTL_ADJ_FLOAT from ADJ (ns)
-    ## Calculate BUFFER_TTL_ADJ in nanoseconds (BUFFER_TTL_ADJ_NS = BUFFER_TTL_NS + ADJ)
-    BUFFER_TTL_ADJ_NS="$((BUFFER_TTL_NS + ADJ))" && vbm "BUFFER_TTL_ADJ_NS:$BUFFER_TTL_ADJ_NS";
+    # Calculate bufferTTL_AdjFloat from adj (ns)
+    ## Calculate buffer_ttl_adj in nanoseconds (buffer_ttl_adj_ns = buffer_ttl_ns + adj)
+    buffer_ttl_adj_ns="$((buffer_ttl_ns + adj))" && vbm "buffer_ttl_adj_ns:$buffer_ttl_adj_ns";

     ## Calculate integer seconds
     ## Calculate integer seconds

-    BUFFER_TTL_ADJ_INT="$((BUFFER_TTL_ADJ_NS/(10**9)))" && vbm "BUFFER_TTL_ADJ_INT:$BUFFER_TTL_ADJ_INT";
-    ### Catch negative integer seconds, set minimum of BUFFER_TTL/10 seconds
-    if [[ "$BUFFER_TTL_ADJ_INT" -le "$((BUFFER_TTL/10))" ]]; then
-       BUFFER_TTL_ADJ_INT="$((BUFFER_TTL/10))";
+    buffer_ttl_adj_int="$((buffer_ttl_adj_ns/(10**9)))" && vbm "buffer_ttl_adj_int:$buffer_ttl_adj_int";
+    ### Catch negative integer seconds, set minimum of bufferTTL/10 seconds
+    if [[ "$buffer_ttl_adj_int" -le "$((bufferTTL/10))" ]]; then
+       buffer_ttl_adj_int="$((bufferTTL/10))";

        yell "WARNING:Buffer lag adjustment yielded negative seconds.";
     fi;
     ## Calculate nanosecond remainder
     ### Remove integer
        yell "WARNING:Buffer lag adjustment yielded negative seconds.";
     fi;
     ## Calculate nanosecond remainder
     ### Remove integer

-    BUFFER_TTL_ADJ_FLOATFRAC="$((BUFFER_TTL_ADJ_NS - (BUFFER_TTL_ADJ_INT*(10**9)) ))" && vbm "BUFFER_TTL_ADJ_FLOATFRAC:$BUFFER_TTL_ADJ_FLOATFRAC";
+    buffer_ttl_adj_floatfrac="$((buffer_ttl_adj_ns - (buffer_ttl_adj_int*(10**9)) ))" && vbm "buffer_ttl_adj_floatfrac:$buffer_ttl_adj_floatfrac";

     ### Calc absolute value of fraction (by removing '-' if present; see https://stackoverflow.com/a/47240327
     ### Calc absolute value of fraction (by removing '-' if present; see https://stackoverflow.com/a/47240327

-    BUFFER_TTL_ADJ_FLOATFRAC="${BUFFER_TTL_ADJ_FLOATFRAC#-}" && vbm "BUFFER_TTL_ADJ_FLOATFRAC:$BUFFER_TTL_ADJ_FLOATFRAC";
-    ## Form float BUFFER_TTL_ADJ_FLOAT
-    BUFFER_TTL_ADJ_FLOAT="$BUFFER_TTL_ADJ_INT"."$BUFFER_TTL_ADJ_FLOATFRAC" && vbm "BUFFER_TTL_ADJ_FLOAT:$BUFFER_TTL_ADJ_FLOAT";
-    vbm "STATUS:Calculated adjusted BUFFER_TTL (seconds):$BUFFER_TTL_ADJ_FLOAT";
-} # Calc BUFFER_TTL_ADJ_FLOAT so buffer starts every BUFFER_TTL seconds
+    buffer_ttl_adj_floatfrac="${buffer_ttl_adj_floatfrac#-}" && vbm "buffer_ttl_adj_floatfrac:$buffer_ttl_adj_floatfrac";
+    ## Form float bufferTTL_AdjFloat (function output)
+    bufferTTL_AdjFloat="$buffer_ttl_adj_int"."$buffer_ttl_adj_floatfrac" && vbm "bufferTTL_AdjFloat:$bufferTTL_AdjFloat";
+    vbm "STATUS:Calculated adjusted bufferTTL (seconds):$bufferTTL_AdjFloat";
+} # Calc bufferTTL_AdjFloat so buffer starts every bufferTTL seconds

 magicWriteVersion() {
 magicWriteVersion() {

-    # Desc: Appends time-stamped VERSION to PATHOUT_TAR
+    # Desc: Appends time-stamped VERSION to pathout_tar

     # Usage: magicWriteVersion
     # Usage: magicWriteVersion

-    # Version: 0.1.0
-    # Input: CONTENT_VERSION, FILEOUT_VERSION, PATHOUT_TAR, DIR_TMP
+    # Input: vars: pathout_tar, dir_tmp
+    # Input: array: recPubKeysValid

     # Input: scriptVersion, scriptURL, ageVersion, ageURL, scriptHostname
     # Input: scriptVersion, scriptURL, ageVersion, ageURL, scriptHostname

-    # Output: appends tar PATHOUT_TAR
+    # Output: appends tar (pathout_tar)

     # Depends: dateTimeShort, appendArgTar
     # Depends: dateTimeShort, appendArgTar

-    local CONTENT_VERSION pubKeyIndex
+    local fileoutVersion contentVersion pubKeyIndex

     
     # Set VERSION file name
     
     # Set VERSION file name

-    FILEOUT_VERSION="$(dateTimeShort)..VERSION";
-
-    # Gather VERSION data in CONTENT_VERSION
-    CONTENT_VERSION="scriptVersion=$scriptVersion";
-    #CONTENT_VERSION="$CONTENT_VERSION""\\n";
-    CONTENT_VERSION="$CONTENT_VERSION""\\n""scriptName=$scriptName";
-    CONTENT_VERSION="$CONTENT_VERSION""\\n""scriptURL=$scriptURL";
-    CONTENT_VERSION="$CONTENT_VERSION""\\n""ageVersion=$ageVersion";
-    CONTENT_VERSION="$CONTENT_VERSION""\\n""ageURL=$ageURL";
-    CONTENT_VERSION="$CONTENT_VERSION""\\n""DATE=$(date --iso-8601=seconds)";
-    CONTENT_VERSION="$CONTENT_VERSION""\\n""HOSTNAME=$scriptHostname";
+    fileoutVersion="$(dateTimeShort)..VERSION";
+
+    # Gather VERSION data in contentVersion
+    contentVersion="scriptVersion=$scriptVersion";
+    #contentVersion="$contentVersion""\\n";
+    contentVersion="$contentVersion""\\n""scriptName=$scriptName";
+    contentVersion="$contentVersion""\\n""scriptURL=$scriptURL";
+    contentVersion="$contentVersion""\\n""ageVersion=$ageVersion";
+    contentVersion="$contentVersion""\\n""ageURL=$ageURL";
+    contentVersion="$contentVersion""\\n""date=$(date --iso-8601=seconds)";
+    contentVersion="$contentVersion""\\n""hostname=$scriptHostname";

     ## Add list of recipient pubkeys
     for pubkey in "${recPubKeysValid[@]}"; do
        ((pubKeyIndex++))
     ## Add list of recipient pubkeys
     for pubkey in "${recPubKeysValid[@]}"; do
        ((pubKeyIndex++))

-       CONTENT_VERSION="$CONTENT_VERSION""\\n""PUBKEY_$pubKeyIndex=$pubkey";
+       contentVersion="$contentVersion""\\n""PUBKEY_$pubKeyIndex=$pubkey";

     done
     ## Process newline escapes
     done
     ## Process newline escapes

-    CONTENT_VERSION="$(echo -e "$CONTENT_VERSION")"
+    contentVersion="$(echo -e "$contentVersion")"

 
 

-    # Write CONTENT_VERSION as file FILEOUT_VERSION and write-append to PATHOUT_TAR
-    appendArgTar "$CONTENT_VERSION" "$FILEOUT_VERSION" "$PATHOUT_TAR" "$DIR_TMP";
-    
-} # bkgpslog: write version data to PATHOUT_TAR via appendArgTar()
+    # Write contentVersion as file fileoutVersion and write-append to pathout_tar
+    appendArgTar "$contentVersion" "$fileoutVersion" "$pathout_tar" "$dir_tmp";
+} # bkgpslog: write version data to pathout_tar via appendArgTar()

 magicGatherWriteBuffer() {
 magicGatherWriteBuffer() {

-    # Desc: bkgpslog-specific meta function for writing data to DIR_TMP then appending each file to PATHOUT_TAR
-    # Inputs: vars: PATHOUT_TAR FILEOUT_{NMEA,GPX,KML} CMD_CONV_{NMEA,GPX,KML} CMD_{COMPRESS,ENCRYPT} DIR_TMP,
-    # Inputs: vars: BUFFER_TTL bufferTTL_STR scriptHostname CMD_COMPRESS_SUFFIX CMD_ENCRYPT_SUFFIX
-    # Output: file: (PATHOUT_TAR)
-    # Depends: yell(), try(), vbm(), appendArgTar(), tar 1, sleep 8, checkMakeTar()
+    # Desc: bkgpslog-specific meta function for writing data to dir_tmp then appending each file to pathout_tar
+    # Inputs: vars: pathout_tar, cmd_conv_{nmea,gpx,kml}, cmd_{compress,encrypt} dir_tmp,
+    # Inputs: vars: bufferTTL bufferTTL_STR scriptHostname cmd_compress_suffix cmd_encrypt_suffix
+    # Output: file: (pathout_tar)
+    # Depends: tar 1, date 8, sleep 8, yell(), try(), vbm(), appendArgTar(), checkMakeTar()

     # Depends: magicWriteVersion(), appendFileTar()
     # Depends: magicWriteVersion(), appendFileTar()

-    local FN
+    local fn pathoutBuffer timeBufferStartLong timeBufferStart fileoutBasename
+    local fileout_nmea fileout_gpx fileout_kml pathout_nmea pathout_gpx pathout_kml pathout_tar

 
 

-    vbm "DEBUG:STATUS:$FN:Started magicGatherWriteBuffer().";

     # Debug:Get function name
     # Debug:Get function name

-    FN="${FUNCNAME[0]}";
+    fn="${FUNCNAME[0]}";
+
+    vbm "DEBUG:STATUS:$fn:Started magicGatherWriteBuffer().";

     
     # Create buffer file with unique name
     
     # Create buffer file with unique name

-    PATHOUT_BUFFER="$DIR_TMP/buffer$SECONDS" && vbm "PATHOUT_BUFFER:$PATHOUT_BUFFER";
+    pathoutBuffer="$dir_tmp/buffer$SECONDS" && vbm "pathoutBuffer:$pathoutBuffer";

     # Fill buffer
     # Fill buffer

-    timeout "$BUFFER_TTL"s gpspipe -r -o "$PATHOUT_BUFFER" ;
-    timeBufferStartLong="$(date --date="$BUFFER_TTL seconds ago" --iso-8601=seconds)" && vbm "timeBufferStartLong:$timeBufferStartLong" || yell "ERROR:timeBufferStartLong fail";
-    timeBufferStart="$(dateTimeShort "$timeBufferStartLong" )" && vbm "timeBufferStart:$timeBufferStart" || yell "ERROR:timeBufferStart fail"; # Note start time
+    timeout "$bufferTTL"s gpspipe -r -o "$pathoutBuffer" ;
+    timeBufferStartLong="$(date --date="$bufferTTL seconds ago" --iso-8601=seconds)" && vbm "timeBufferStartLong:$timeBufferStartLong";
+    timeBufferStart="$(dateTimeShort "$timeBufferStartLong" )" && vbm "timeBufferStart:$timeBufferStart"; # Note start time

     # Determine file paths (time is start of buffer period)
     # Determine file paths (time is start of buffer period)

-    FILEOUT_BASENAME="$timeBufferStart""--""$bufferTTL_STR""..""$scriptHostname""_location" && vbm "STATUS:Set FILEOUT_BASENAME to:$FILEOUT_BASENAME";
-    ## Files saved to DIR_TMP
-    FILEOUT_NMEA="$FILEOUT_BASENAME".nmea"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" && vbm "STATUS:Set FILEOUT_NMEA to:$FILEOUT_NMEA";
-    FILEOUT_GPX="$FILEOUT_BASENAME".gpx"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" && vbm "STATUS:Set FILEOUT_GPX to:$FILEOUT_GPX";
-    FILEOUT_KML="$FILEOUT_BASENAME".kml"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" && vbm "STATUS:Set FILEOUT_KML to:$FILEOUT_KML";
-    PATHOUT_NMEA="$DIR_TMP"/"$FILEOUT_NMEA" && vbm "STATUS:Set PATHOUT_NMEA to:$PATHOUT_NMEA";
-    PATHOUT_GPX="$DIR_TMP"/"$FILEOUT_GPX" && vbm "STATUS:Set PATHOUT_GPX to:$PATHOUT_GPX";
-    PATHOUT_KML="$DIR_TMP"/"$FILEOUT_KML" && vbm "STATUS:Set PATHOUT_KML to:$PATHOUT_KML";
-    ## Files saved to disk (DIR_OUT)
+    fileoutBasename="$timeBufferStart""--""$bufferTTL_STR""..""$scriptHostname""_location" && vbm "STATUS:Set fileoutBasename to:$fileoutBasename";
+    ## Files saved to dir_tmp
+    fileout_nmea="$fileoutBasename".nmea"$cmd_compress_suffix""$cmd_encrypt_suffix" && vbm "STATUS:Set fileout_nmea to:$fileout_nmea";
+    fileout_gpx="$fileoutBasename".gpx"$cmd_compress_suffix""$cmd_encrypt_suffix" && vbm "STATUS:Set fileout_gpx to:$fileout_gpx";
+    fileout_kml="$fileoutBasename".kml"$cmd_compress_suffix""$cmd_encrypt_suffix" && vbm "STATUS:Set fileout_kml to:$fileout_kml";
+    pathout_nmea="$dir_tmp"/"$fileout_nmea" && vbm "STATUS:Set pathout_nmea to:$pathout_nmea";
+    pathout_gpx="$dir_tmp"/"$fileout_gpx" && vbm "STATUS:Set pathout_gpx to:$pathout_gpx";
+    pathout_kml="$dir_tmp"/"$fileout_kml" && vbm "STATUS:Set pathout_kml to:$pathout_kml";
+    ## Files saved to disk (dirOut)

     ### one file per day (Ex: "20200731..hostname_location.[.gpx.gz].tar")
     ### one file per day (Ex: "20200731..hostname_location.[.gpx.gz].tar")

-    PATHOUT_TAR="$DIR_OUT"/"$(dateShort "$(date --date="$BUFFER_TTL seconds ago" --iso-8601=seconds)")".."$scriptHostname""_location""$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX".tar && \
-       vbm "STATUS:Set PATHOUT_TAR to:$PATHOUT_TAR";
+    pathout_tar="$dirOut"/"$(dateShort "$(date --date="$bufferTTL seconds ago" --iso-8601=seconds)")".."$scriptHostname""_location""$cmd_compress_suffix""$cmd_encrypt_suffix".tar && \
+       vbm "STATUS:Set pathout_tar to:$pathout_tar";

     # DEBUG: check vars
     # DEBUG: check vars

-    vbm "STATUS:FN             :$FN";
-    vbm "STATUS:DIR_TMP        :$DIR_TMP";
-    vbm "STATUS:PATHOUT_TAR    :$PATHOUT_TAR";
-    vbm "STATUS:PATHOUT_NMEA   :$PATHOUT_NMEA";
-    vbm "STATUS:PATHOUT_GPX    :$PATHOUT_GPX";
-    vbm "STATUS:PATHOUT_KML    :$PATHOUT_KML";
-    vbm "STATUS:BUFFER_TTL     :$BUFFER_TTL";
-    vbm "STATUS:PATHOUT_BUFFER :$PATHOUT_BUFFER";
+    vbm "STATUS:fn             :$fn";
+    vbm "STATUS:dir_tmp        :$dir_tmp";
+    vbm "STATUS:pathout_tar    :$pathout_tar";
+    vbm "STATUS:pathout_nmea   :$pathout_nmea";
+    vbm "STATUS:pathout_gpx    :$pathout_gpx";
+    vbm "STATUS:pathout_kml    :$pathout_kml";
+    vbm "STATUS:bufferTTL      :$bufferTTL";
+    vbm "STATUS:pathoutBuffer  :$pathoutBuffer";

     vbm "STATUS:timeBufferStart:$timeBufferStart";
     vbm "STATUS:timeBufferStart:$timeBufferStart";

-    vbm "FILEOUT_BASENAME      :$FILEOUT_BASENAME";
-    
+    vbm "fileoutBasename      :$fileoutBasename";

     
     

-    # Validate PATHOUT_TAR as tar.
-    checkMakeTar "$PATHOUT_TAR";
+    # Validate pathout_tar as tar.
+    checkMakeTar "$pathout_tar";

     ## Add VERSION file if checkMakeTar had to create a tar (exited 1) or replace one (exited 2)
     vbm "exit status before magicWriteVersion:$?"
     if [[ $? -eq 1 ]] || [[ $? -eq 2 ]]; then magicWriteVersion; fi
 
     ## Add VERSION file if checkMakeTar had to create a tar (exited 1) or replace one (exited 2)
     vbm "exit status before magicWriteVersion:$?"
     if [[ $? -eq 1 ]] || [[ $? -eq 2 ]]; then magicWriteVersion; fi
 

-    # Write bufferBash to PATHOUT_TAR
+    # Write bufferBash to pathout_tar

     wait; # Wait to avoid collision with older magicWriteBuffer() instances (see https://www.tldp.org/LDP/abs/html/x9644.html )
     wait; # Wait to avoid collision with older magicWriteBuffer() instances (see https://www.tldp.org/LDP/abs/html/x9644.html )

-    appendFileTar "$PATHOUT_BUFFER" "$FILEOUT_NMEA" "$PATHOUT_TAR" "$DIR_TMP" "$CMD_CONV_NMEA" "$CMD_COMPRESS" "$CMD_ENCRYPT"; # Write NMEA data
-    appendFileTar "$PATHOUT_BUFFER" "$FILEOUT_GPX" "$PATHOUT_TAR" "$DIR_TMP" "$CMD_CONV_GPX" "$CMD_COMPRESS" "$CMD_ENCRYPT"; # Write GPX file
-    appendFileTar "$PATHOUT_BUFFER" "$FILEOUT_KML" "$PATHOUT_TAR" "$DIR_TMP" "$CMD_CONV_KML" "$CMD_COMPRESS" "$CMD_ENCRYPT"; # Write KML file
+    appendFileTar "$pathoutBuffer" "$fileout_nmea" "$pathout_tar" "$dir_tmp" "$cmd_conv_nmea" "$cmd_compress" "$cmd_encrypt"; # Write NMEA data
+    appendFileTar "$pathoutBuffer" "$fileout_gpx" "$pathout_tar" "$dir_tmp" "$cmd_conv_gpx" "$cmd_compress" "$cmd_encrypt"; # Write GPX file
+    appendFileTar "$pathoutBuffer" "$fileout_kml" "$pathout_tar" "$dir_tmp" "$cmd_conv_kml" "$cmd_compress" "$cmd_encrypt"; # Write KML file

 
 

-    # Remove secured chunks from DIR_TMP
-    rm "$PATHOUT_BUFFER" "$PATHOUT_NMEA" "$PATHOUT_GPX" "$PATHOUT_KML";
-    vbm "DEBUG:STATUS:$FN:Finished magicGatherWriteBuffer().";
+    # Remove secured chunks from dir_tmp
+    rm "$pathoutBuffer" "$pathout_nmea" "$pathout_gpx" "$pathout_kml";
+    vbm "DEBUG:STATUS:$fn:Finished magicGatherWriteBuffer().";

 } # write buffer to disk
 magicParseRecipientDir() {
     # Desc: Updates recPubKeysValid with pubkeys in dir specified by '-R' option ("recipient directory")
 } # write buffer to disk
 magicParseRecipientDir() {
     # Desc: Updates recPubKeysValid with pubkeys in dir specified by '-R' option ("recipient directory")

-    # Inputs:  vars: OPTION_RECDIR, argRecDir, OPTION_ENCRYPT
+    # Inputs:  vars: optionRecDir, argRecDir, optionEncrypt

     #          arry: recPubKeysValid
     # Outputs: arry: recPubKeysValid
     # Depends: processArguments,
     #          arry: recPubKeysValid
     # Outputs: arry: recPubKeysValid
     # Depends: processArguments,

-    local recFileLine updateRecipients recipientDir
+    local recipientDir recFileLine updateRecipients 

     declare -a candRecPubKeysValid
 
     # Check that '-e' and '-R' set
     declare -a candRecPubKeysValid
 
     # Check that '-e' and '-R' set

-    if [[ "$OPTION_ENCRYPT" = "true" ]] && [[ "$OPTION_RECDIR" = "true" ]]; then
+    if [[ "$optionEncrypt" = "true" ]] && [[ "$optionRecDir" = "true" ]]; then

        ### Check that argRecDir is a directory.
        if [[ -d "$argRecDir" ]]; then
            recipientDir="$argRecDir" && vbm "STATUS:Recipient watch directory detected:\"$recipientDir\"";
        ### Check that argRecDir is a directory.
        if [[ -d "$argRecDir" ]]; then
            recipientDir="$argRecDir" && vbm "STATUS:Recipient watch directory detected:\"$recipientDir\"";


@@ -1147,20 +1148,20 @@ magicParseRecipientDir() {
        fi;
     fi;
     # Handle case if '-R' set but '-e' not set
        fi;
     fi;
     # Handle case if '-R' set but '-e' not set

-    if [[ ! "$OPTION_ENCRYPT" = "true" ]] && [[ "$OPTION_RECDIR" = "true" ]]; then
+    if [[ ! "$optionEncrypt" = "true" ]] && [[ "$optionRecDir" = "true" ]]; then

        yell "ERROR: \\'-R\\' is set but \\'-e\\' is not set."; fi;
 } # Update recPubKeysValid with argRecDir
 magicParseRecipientArgs() {
     # Desc: Parses recipient arguments specified by '-r' option
        yell "ERROR: \\'-R\\' is set but \\'-e\\' is not set."; fi;
 } # Update recPubKeysValid with argRecDir
 magicParseRecipientArgs() {
     # Desc: Parses recipient arguments specified by '-r' option

-    # Input:  vars: OPTION_ENCRYPT from processArguments()
+    # Input:  vars: optionEncrypt, optionRecipients

     #         arry: argRecPubKeys from processArguments()
     #         arry: argRecPubKeys from processArguments()

-    # Output: vars: CMD_ENCRYPT, CMD_ENCRYPT_SUFFIX
+    # Output: vars: cmd_encrypt, cmd_encrypt_suffix

     #         arry: recPubKeysValid, recPubKeysValidStatic
     # Depends: checkapp(), checkAgePubkey(), validateInput(), processArguments()
     local recipients
 
     # Check if encryption option active.
     #         arry: recPubKeysValid, recPubKeysValidStatic
     # Depends: checkapp(), checkAgePubkey(), validateInput(), processArguments()
     local recipients
 
     # Check if encryption option active.

-    if [[ "$OPTION_ENCRYPT" = "true" ]] && [[ "$OPTION_RECIPIENTS" = "true" ]]; then 
+    if [[ "$optionEncrypt" = "true" ]] && [[ "$optionRecipients" = "true" ]]; then 

        if checkapp age; then # Check that age is available.
            for pubkey in "${argRecPubKeys[@]}"; do # Validate recipient pubkey strings by forming test message
                vbm "DEBUG:Testing pubkey string:$pubkey";
        if checkapp age; then # Check that age is available.
            for pubkey in "${argRecPubKeys[@]}"; do # Validate recipient pubkey strings by forming test message
                vbm "DEBUG:Testing pubkey string:$pubkey";


@@ -1181,97 +1182,97 @@ magicParseRecipientArgs() {
            recPubKeysValidStatic=("${recPubKeysValid[@]}"); # Save static image of pubkeys validated by this function
 
            ##  Form age command string
            recPubKeysValidStatic=("${recPubKeysValid[@]}"); # Save static image of pubkeys validated by this function
 
            ##  Form age command string

-           CMD_ENCRYPT="age ""$recipients " && vbm "CMD_ENCRYPT:$CMD_ENCRYPT";
-           CMD_ENCRYPT_SUFFIX=".age" && vbm "CMD_ENCRYPT_SUFFIX:$CMD_ENCRYPT_SUFFIX";
+           cmd_encrypt="age ""$recipients " && vbm "cmd_encrypt:$cmd_encrypt";
+           cmd_encrypt_suffix=".age" && vbm "cmd_encrypt_suffix:$cmd_encrypt_suffix";

        else
            yell "ERROR:Encryption enabled but \"age\" not found. Exiting."; exit 1;
        fi;
     else
        else
            yell "ERROR:Encryption enabled but \"age\" not found. Exiting."; exit 1;
        fi;
     else

-       CMD_ENCRYPT="tee /dev/null " && vbm "CMD_ENCRYPT:$CMD_ENCRYPT";
-       CMD_ENCRYPT_SUFFIX="" && vbm "CMD_ENCRYPT_SUFFIX:$CMD_ENCRYPT_SUFFIX";
+       cmd_encrypt="tee /dev/null " && vbm "cmd_encrypt:$cmd_encrypt";
+       cmd_encrypt_suffix="" && vbm "cmd_encrypt_suffix:$cmd_encrypt_suffix";

        vbm "DEBUG:Encryption not enabled."
     fi;
     # Catch case if '-e' is set but '-r' or '-R' is not
        vbm "DEBUG:Encryption not enabled."
     fi;
     # Catch case if '-e' is set but '-r' or '-R' is not

-    if [[ "$OPTION_ENCRYPT" = "true" ]] && [[ ! "$OPTION_RECIPIENTS" = "true" ]]; then
+    if [[ "$optionEncrypt" = "true" ]] && [[ ! "$optionRecipients" = "true" ]]; then

        yell "ERROR:\\'-e\\' set but no \\'-r\\' or \\'-R\\' set."; exit 1; fi;
     # Catch case if '-r' or '-R' set but '-e' is not
        yell "ERROR:\\'-e\\' set but no \\'-r\\' or \\'-R\\' set."; exit 1; fi;
     # Catch case if '-r' or '-R' set but '-e' is not

-    if [[ ! "$OPTION_ENCRYPT" = "true" ]] && [[ "$OPTION_RECIPIENTS" = "true" ]]; then
+    if [[ ! "$optionEncrypt" = "true" ]] && [[ "$optionRecipients" = "true" ]]; then

        yell "ERROR:\\'-r\\' or \\'-R\\' set but \\'-e\\' is not set."; exit 1; fi; 
 } # Populate recPubKeysValid with argRecPubKeys; form encryption cmd string and filename suffix
 magicParseCompressionArg() {
     # Desc: Parses compression arguments specified by '-c' option
        yell "ERROR:\\'-r\\' or \\'-R\\' set but \\'-e\\' is not set."; exit 1; fi; 
 } # Populate recPubKeysValid with argRecPubKeys; form encryption cmd string and filename suffix
 magicParseCompressionArg() {
     # Desc: Parses compression arguments specified by '-c' option

-    # Input:  vars: OPTION_COMPRESS
-    # Output: CMD_COMPRESS, CMD_COMPRESS_SUFFIX
+    # Input:  vars: optionCompress
+    # Output: cmd_compress, cmd_compress_suffix

     # Depends: checkapp(), vbm(), gzip, 
     # Depends: checkapp(), vbm(), gzip, 

-    if [[ "$OPTION_COMPRESS" = "true" ]]; then # Check if compression option active
+    if [[ "$optionCompress" = "true" ]]; then # Check if compression option active

        if checkapp gzip; then # Check if gzip available
        if checkapp gzip; then # Check if gzip available

-           CMD_COMPRESS="gzip " && vbm "CMD_COMPRESS:$CMD_COMPRESS";
-           CMD_COMPRESS_SUFFIX=".gz" && vbm "CMD_COMPRESS_SUFFIX:$CMD_COMPRESS_SUFFIX";
+           cmd_compress="gzip " && vbm "cmd_compress:$cmd_compress";
+           cmd_compress_suffix=".gz" && vbm "cmd_compress_suffix:$cmd_compress_suffix";

        else
            yell "ERROR:Compression enabled but \"gzip\" not found. Exiting."; exit 1;
        fi
     else
        else
            yell "ERROR:Compression enabled but \"gzip\" not found. Exiting."; exit 1;
        fi
     else

-       CMD_COMPRESS="tee /dev/null " && vbm "CMD_COMPRESS:$CMD_COMPRESS";
-       CMD_COMPRESS_SUFFIX="" && vbm "CMD_COMPRESS_SUFFIX:$CMD_COMPRESS_SUFFIX";
+       cmd_compress="tee /dev/null " && vbm "cmd_compress:$cmd_compress";
+       cmd_compress_suffix="" && vbm "cmd_compress_suffix:$cmd_compress_suffix";

        vbm "DEBUG:Compression not enabled.";
     fi    
 } # Form compression cmd string and filename suffix
 magicInitWorkingDir() {
     # Desc: Determine temporary working directory from defaults or user input
        vbm "DEBUG:Compression not enabled.";
     fi    
 } # Form compression cmd string and filename suffix
 magicInitWorkingDir() {
     # Desc: Determine temporary working directory from defaults or user input

-    # Usage: magicInitWorkignDir
-    # Input:  vars: OPTION_TEMPDIR, argTempDirPriority, dirTmpDefault
+    # Usage: magicInitWorkingDir
+    # Input:  vars: optionTmpDir, argTempDirPriority, dirTmpDefault

     # Input:  vars: scriptTimeStart
     # Input:  vars: scriptTimeStart

-    # Output: vars: DIR_TMP
+    # Output: vars: dir_tmp

     # Depends: processArguments(), vbm(), yell()
     # Parse '-t' option (user-specified temporary working dir)
     # Depends: processArguments(), vbm(), yell()
     # Parse '-t' option (user-specified temporary working dir)

-    ## Set DIR_TMP_PARENT to user-specified value if specified
-    local DIR_TMP_PARENT
+    ## Set dir_tmp_parent to user-specified value if specified
+    local dir_tmp_parent

     
     

-    if [[ "$OPTION_TMPDIR" = "true" ]]; then
+    if [[ "$optionTmpDir" = "true" ]]; then

        if [[ -d "$argTempDirPriority" ]]; then
        if [[ -d "$argTempDirPriority" ]]; then

-           DIR_TMP_PARENT="$argTempDirPriority"; 
+           dir_tmp_parent="$argTempDirPriority"; 

        else
            yell "WARNING:Specified temporary working directory not valid:$argTempDirPriority";
            exit 1; # Exit since user requires a specific temp dir and it is not available.
        fi;
     else
        else
            yell "WARNING:Specified temporary working directory not valid:$argTempDirPriority";
            exit 1; # Exit since user requires a specific temp dir and it is not available.
        fi;
     else

-    ## Set DIR_TMP_PARENT to default or fallback otherwise
+    ## Set dir_tmp_parent to default or fallback otherwise

        if [[ -d "$dirTmpDefault" ]]; then
        if [[ -d "$dirTmpDefault" ]]; then

-           DIR_TMP_PARENT="$dirTmpDefault";
+           dir_tmp_parent="$dirTmpDefault";

        elif [[ -d /tmp ]]; then
            yell "WARNING:$dirTmpDefault not available. Falling back to /tmp .";
        elif [[ -d /tmp ]]; then
            yell "WARNING:$dirTmpDefault not available. Falling back to /tmp .";

-           DIR_TMP_PARENT="/tmp";
+           dir_tmp_parent="/tmp";

        else
            yell "ERROR:No valid working directory available. Exiting.";
            exit 1;
        fi
     fi;
        else
            yell "ERROR:No valid working directory available. Exiting.";
            exit 1;
        fi
     fi;

-    ## Set DIR_TMP using DIR_TMP_PARENT and nonce (scriptTimeStart)
-    DIR_TMP="$DIR_TMP_PARENT"/"$scriptTimeStart""..bkgpslog" && vbm "DEBUG:Set DIR_TMP to:$DIR_TMP"; # Note: removed at end of main().    
+    ## Set dir_tmp using dir_tmp_parent and nonce (scriptTimeStart)
+    dir_tmp="$dir_tmp_parent"/"$scriptTimeStart""..bkgpslog" && vbm "DEBUG:Set dir_tmp to:$dir_tmp"; # Note: removed at end of main().

 } # Sets working dir
 magicParseCustomTTL() {
     # Desc: Set user-specified TTLs for buffer and script
     # Input: vars: argCustomBufferTTL (integer), argCustomScriptTTL_TE (string)
 } # Sets working dir
 magicParseCustomTTL() {
     # Desc: Set user-specified TTLs for buffer and script
     # Input: vars: argCustomBufferTTL (integer), argCustomScriptTTL_TE (string)

-    # Input: vars: OPTION_CUSTOM_BUFFERTTL, OPTION_CUSTOM_SCRIPTTTL
-    # Input: vars: BUFFER_TTL (integer), scriptTTL_TE (string)
-    # Output: BUFFER_TTL (integer), scriptTTL_TE (string)
+    # Input: vars: optionCustomBufferTTL, optionCustomScriptTTL_TE
+    # Input: vars: bufferTTL (integer), scriptTTL_TE (string)
+    # Output: bufferTTL (integer), scriptTTL_TE (string)

     # Depends validateInput(), showUsage(), yell
 
     # React to '-b, --buffer-ttl' option
     # Depends validateInput(), showUsage(), yell
 
     # React to '-b, --buffer-ttl' option

-    if [[ "$OPTION_CUSTOM_BUFFERTTL" = "true" ]]; then
+    if [[ "$optionCustomBufferTTL" = "true" ]]; then

        ## T: Check if argCustomBufferTTL is an integer
        if validateInput "$argCustomBufferTTL" "integer"; then
            ### T: argCustomBufferTTL is an integer
        ## T: Check if argCustomBufferTTL is an integer
        if validateInput "$argCustomBufferTTL" "integer"; then
            ### T: argCustomBufferTTL is an integer

-           BUFFER_TTL="$argCustomBufferTTL" && vbm "Custom BUFFER_TTL from -b:$BUFFER_TTL";
+           bufferTTL="$argCustomBufferTTL" && vbm "Custom bufferTTL from -b:$bufferTTL";

        else
            ### F: argcustomBufferTTL is not an integer
            yell "ERROR:Invalid integer argument for custom buffer time-to-live."; showUsage; exit 1;
        fi;
        else
            ### F: argcustomBufferTTL is not an integer
            yell "ERROR:Invalid integer argument for custom buffer time-to-live."; showUsage; exit 1;
        fi;

-       ## F: do not change BUFFER_TTL
+       ## F: do not change bufferTTL

     fi;
     
     # React to '-B, --script-ttl' option
     fi;
     
     # React to '-B, --script-ttl' option

-    if [[ "$OPTION_CUSTOM_SCRIPTTTL_TE" = "true" ]]; then
+    if [[ "$optionCustomScriptTTL_TE" = "true" ]]; then

        ## T: Check if argCustomScriptTTL is a time element (ex: "day", "hour")
        if validateInput "$argCustomScriptTTL" "time_element"; then
            ### T: argCustomScriptTTL is a time element
        ## T: Check if argCustomScriptTTL is a time element (ex: "day", "hour")
        if validateInput "$argCustomScriptTTL" "time_element"; then
            ### T: argCustomScriptTTL is a time element


@@ -1292,60 +1293,60 @@ main() {
     processArguments "$@";
     ## Act upon arguments
     ### Determine working directory
     processArguments "$@";
     ## Act upon arguments
     ### Determine working directory

-    magicInitWorkingDir; # Sets DIR_TMP from argTempDirPriority
+    magicInitWorkingDir; # Sets dir_tmp from argTempDirPriority

     ### Set output encryption and compression option strings
     #### React to "-r" ("encryption recipients") option
     ### Set output encryption and compression option strings
     #### React to "-r" ("encryption recipients") option

-    magicParseRecipientArgs; # Updates recPubKeysValid, CMD_ENCRYPT[_SUFFIX] from argRecPubKeys
+    magicParseRecipientArgs; # Updates recPubKeysValid, cmd_encrypt[_suffix] from argRecPubKeys

     #### React to "-c" ("compression") option
     #### React to "-c" ("compression") option

-    magicParseCompressionArg; # Updates CMD_COMPRESS[_SUFFIX]
+    magicParseCompressionArg; # Updates cmd_compress[_suffix]

     #### React to "-R" ("recipient directory") option
     magicParseRecipientDir; # Updates recPubKeysValid
     #### React to custom buffer and script TTL options ("-b", "-B")
     magicParseCustomTTL; # Sets custom scriptTTL_TE and/or bufferTTL if specified
 
     # Check that critical apps and dirs are available, display missing ones.
     #### React to "-R" ("recipient directory") option
     magicParseRecipientDir; # Updates recPubKeysValid
     #### React to custom buffer and script TTL options ("-b", "-B")
     magicParseCustomTTL; # Sets custom scriptTTL_TE and/or bufferTTL if specified
 
     # Check that critical apps and dirs are available, display missing ones.

-    if ! checkapp gpspipe tar && ! checkdir "$DIR_OUT" "DIR_TMP"; then
+    if ! checkapp gpspipe tar && ! checkdir "$dirOut" "dir_tmp"; then

        yell "ERROR:Critical components missing.";
        displayMissing; yell "Exiting."; exit 1; fi
 
        yell "ERROR:Critical components missing.";
        displayMissing; yell "Exiting."; exit 1; fi
 

-    # Set script lifespan (SCRIPT_TTL from scriptTTL_TE)
+    # Set script lifespan (scriptTTL from scriptTTL_TE)

     magicSetScriptTTL "$scriptTTL_TE";
     magicSetScriptTTL "$scriptTTL_TE";

-    ## Note: scriptTTL_TE is time element string (ex: "day") while SCRIPT_TTL is integer seconds
+    ## Note: scriptTTL_TE is time element string (ex: "day") while scriptTTL is integer seconds

 
 

-    # File name substring (ISO-8601 duration from BUFFER_TTL)
+    # File name substring (ISO-8601 duration from bufferTTL)

     bufferTTL_STR="$(timeDuration "$bufferTTL")" && vbm "DEBUG:bufferTTL_STR:$bufferTTL_STR";
 
     # Init temp working dir
     bufferTTL_STR="$(timeDuration "$bufferTTL")" && vbm "DEBUG:bufferTTL_STR:$bufferTTL_STR";
 
     # Init temp working dir

-    try mkdir "$DIR_TMP" && vbm "DEBUG:Working dir created at DIR_TMP:$DIR_TMP";
+    try mkdir "$dir_tmp" && vbm "DEBUG:Working dir created at dir_tmp:$dir_tmp";

 
     # Initialize 'tar' archive
     ## Define output tar path (note: each day gets *one* tar file (Ex: "20200731..hostname_location.[.gpx.gz].tar"))
 
     # Initialize 'tar' archive
     ## Define output tar path (note: each day gets *one* tar file (Ex: "20200731..hostname_location.[.gpx.gz].tar"))

-    PATHOUT_TAR="$DIR_OUT"/"$(dateShort)".."$scriptHostname""_location""$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX".tar && \
-       vbm "STATUS:Set PATHOUT_TAR to:$PATHOUT_TAR";
-    ## Check that PATHOUT_TAR is a tar. Rename old and create empty one otherwise.
-    checkMakeTar "$PATHOUT_TAR" && vbm "DEBUG:Confirmed or Created to be a tar:$PATHOUT_TAR";
-    ## Append VERSION file to PATHOUT_TAR
+    pathout_tar="$dirOut"/"$(dateShort "$(date --date="$bufferTTL seconds ago" --iso-8601=seconds)")".."$scriptHostname""_location""$cmd_compress_suffix""$cmd_encrypt_suffix".tar && \
+       vbm "STATUS:Set pathout_tar to:$pathout_tar";
+    ## Check that pathout_tar is a tar. Rename old and create empty one otherwise.
+    checkMakeTar "$pathout_tar" && vbm "DEBUG:Confirmed or Created to be a tar:$pathout_tar";
+    ## Append VERSION file to pathout_tar

     magicWriteVersion;
 
     # Define GPS conversion commands
     magicWriteVersion;
 
     # Define GPS conversion commands

-    CMD_CONV_NMEA="tee /dev/null " && vbm "STATUS:Set CMD_CONV_NMEA to:$CMD_CONV_NMEA"; # tee as passthrough
-    CMD_CONV_GPX="gpsbabel -i nmea -f - -o gpx -F - " && vbm "STATUS:Set CMD_CONV_GPX to:$CMD_CONV_GPX"; # convert NMEA to GPX
-    CMD_CONV_KML="gpsbabel -i nmea -f - -o kml -F - " && vbm "STATUS:Set CMD_CONV_KML to:$CMD_CONV_KML"; # convert NMEA to KML
+    cmd_conv_nmea="tee /dev/null " && vbm "STATUS:Set cmd_conv_nmea to:$cmd_conv_nmea"; # tee as passthrough
+    cmd_conv_gpx="gpsbabel -i nmea -f - -o gpx -F - " && vbm "STATUS:Set cmd_conv_gpx to:$cmd_conv_gpx"; # convert NMEA to GPX
+    cmd_conv_kml="gpsbabel -i nmea -f - -o kml -F - " && vbm "STATUS:Set cmd_conv_kml to:$cmd_conv_kml"; # convert NMEA to KML

 
     # MAIN LOOP:Record gps data until script lifespan ends
 
     # MAIN LOOP:Record gps data until script lifespan ends

-    timeBufferFirstNS="$(timeEpochNS)"; bufferRound=0; BUFFER_TTL_ADJ_FLOAT="$BUFFER_TTL";
-    while [[ "$SECONDS" -lt "$SCRIPT_TTL" ]]; do
-       if ! [[ -d "$DIR_TMP" ]]; then yell "ERROR:DIR_TMP existence failure:$DIR_TMP"; try mkdir "$DIR_TMP" && vbm "DEBUG:Working dir recreated DIR_TMP:$DIR_TMP"; fi
+    timeBufferFirstNS="$(timeEpochNS)"; bufferRound=0; bufferTTL_AdjFloat="$bufferTTL";
+    while [[ "$SECONDS" -lt "$scriptTTL" ]]; do
+       if ! [[ -d "$dir_tmp" ]]; then yell "ERROR:dir_tmp existence failure:$dir_tmp"; try mkdir "$dir_tmp" && vbm "DEBUG:Working dir recreated dir_tmp:$dir_tmp"; fi

        magicParseRecipientDir;
        magicGatherWriteBuffer &
        magicParseRecipientDir;
        magicGatherWriteBuffer &

-       sleep "$BUFFER_TTL_ADJ_FLOAT"; # adjusted by magicBufferSleepPID
+       sleep "$bufferTTL_AdjFloat"; # adjusted by magicBufferSleepPID

        ((bufferRound++));
        ((bufferRound++));

-       magicBufferSleepPID; # Calculates BUFFER_TTL_ADJ_FLOAT from BUFFER_TTL given buffer expected start time vs. actual
+       magicBufferSleepPID; # Calculates bufferTTL_AdjFloat from bufferTTL given buffer expected start time vs. actual

     done    
 
     # Cleanup
     done    
 
     # Cleanup

-    ## Remove DIR_TMP
-    try rm -r "$DIR_TMP" && vbm "Removed DIR_TMP:$DIR_TMP";
+    ## Remove dir_tmp
+    try rm -r "$dir_tmp" && vbm "Removed dir_tmp:$dir_tmp";

 
     vbm "STATUS:Main function finished.";
 } # Main function.
 
     vbm "STATUS:Main function finished.";
 } # Main function.