#!/bin/rc

rfork e

argv0=$0

fn usage{
	echo usage: $argv0 id
	exit usage
}

if(! ~ $#* 1)
	usage
if(! test -d /dev/wsys/^$1){
	echo E: bad win id >[1=2]
	exit 'bad win id'
}
exec echo -n >/dev/wsys/^$1^/text