My Bash Snippets
interactive date
(the difference part requires "dateutils") but can be removed without loss.
will NOT let you leave until you provide a valid date.
(overall, this is hacky and clunky because it clobbers variables. not a clean function.
function int_date () { when="" while [[ $date_confirmed == "no" ]]; do echo "when?" read when date -d "$when" > /dev/null if [ $? == 0 ]; then date_confirmed="yes" outputdate=$(date -d "$when" +"%Y-%m-%d") outputtime=$(date -d "$when" +"%R") echo "So: $(date -d "$when" +"%A, %B %e - %r - %x")" diffdate=$(date -d "$when" +"%Y-%m-%d") echo "which is in $(dateutils.ddiff now "$diffdate") days" else echo "that aint a date" fi done }