#!/bin/rc

rfork e

if (! ~ $#* 2) {
	echo usage $0 cond cmd >[1=2]
	exit usage
}

cond=`{echo $1}
cmd=`{echo $2}
while(sleep 15) {
	{$cond} >/dev/null >[2=1] && { {$cmd} ; exit '' }
}