try() { "$@" || die "cannot $*"; }
timeUntilNextHour(){
# Desc: Report seconds until next hour
- # Version 1.0.0
+ # Version 1.0.1
# Output: stdout: integer seconds until next hour
# Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0
# Usage: timeUntilNextHour
# Usage: if ! myTTL="$(timeUntilNextHour)"; then yell "ERROR in if statement"; exit 1; fi
- 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 [[ "$secondsUntilNextHour" -gt 0 ]]; then
returnState="true";
- elif [[ "$SECONDS_UNTIL_NEXT_HOUR" -eq 0 ]]; then
+ elif [[ "$secondsUntilNextHour" -eq 0 ]]; then
returnState="warning_zero";
yell "WARNING:Reported time until next hour exactly zero.";
- elif [[ "$SECONDS_UNTIL_NEXT_HOUR" -lt 0 ]]; then
+ elif [[ "$secondsUntilNextHour" -lt 0 ]]; then
returnState="warning_negative";
yell "WARNING:Reported time until next hour is negative.";
- fi
+ fi;
- try echo "$SECONDS_UNTIL_NEXT_HOUR"; # Report
+ try echo "$secondsUntilNextHour"; # Report
# Determine function return code
if [[ "$returnState" = "true" ]]; then
return 1;
elif [[ "$returnState" = "warning_negative" ]]; then
return 2;
- fi
+ fi;
} # Report seconds until next hour
#===END Declare local script functions===
#==END Define script parameters==