SCRIPT_DATE_SHORT="$(date +%Y%m%d)" # Save current date in ISO-8601 format.
#DIROUT1="/home/pi/Sync/Evanescent_Location" # Define output directory.
-#== Function Definitions ==
+#== Script Function Definitions ==
+# 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.