watch

#!/bin/bash
#watch a file or all files in a directory
#Mac OS X has no watch command
#this script simulates the watch command

clear="/usr/bin/clear"
ls="/bin/ls"
sleep="/bin/sleep"

clear
if [ -s "$1" ]
        then
                while ls -skhTuorc "$1"; do sleep 0.98; clear; done
        else
                while ls -skhTuorc; do sleep 0.98; clear; done
fi
exit