#!/bin/sh
# look for command in PATH
# exit status 0 indicates found, 1 indicates not found, 2 missing argument

if [ $# != 1 ]
then
	exit 2
fi
for dir in `echo $PATH | sed 's/:/ /g'`
do
	if [ -x $dir/$1 ]
	then
		exit 0
	fi
done
exit 1