#!/bin/bash THISFILE=$0 setclock() { echo "Setting clock." MYTIME=$(date -r $THISFILE '+%Y-%m-%d %r') date --set="$MYTIME" &>/dev/null } saveclock() { echo "Saving current time." touch $THISFILE &>/dev/null } case "$1" in set) setclock ;; save) saveclock ;; *) echo "Usage: $THISFILE {set|save}" exit 1 ;; esac