dimator | head

OS X (at least mine) doesn’t have a watch (1). Here is a cheap lookalike in bash, because I like bash:

#!/bin/sh
#
# Dimi Shahbaz
#
# A (crude) replacement for the UNIX watch command for
# systems that don't have it.
#
# Options:
#  -n SEC     Delay in seconds between command executions
#
	
DELAY=2
	
while getopts \"n:\" Option
do
	case $Option in
		n)	DELAY=$OPTARG; shift; shift;;
	esac
done
	
CMD=$@;
	
while /usr/bin/true ; do
	clear;
	date;
	sh -c \"$CMD\"
	sleep $DELAY;
done