#!/bin/sh

if [ $# -eq 1 ]
then
	if [ "$1" = "on" -o "$1" = "On" -o "$1" = "ON" ]
	then
		stty echo
		echo `basename $0` OK
	else
		if [ "$1" = "off" -o "$1" = "Off" -o "$1" = "OFF" ]
		then
			stty -echo
			echo `basename $0` OK
		else
			echo 'usage: '`basename $0`' [on|off]'
			echo `basename $0` KO
		fi
	fi
else
	res=`stty | grep echo`
	if [ "$res" = "" ]
	then 
		echo `basename $0` on
	else
		echo `basename $0` off
	fi
	echo `basename $0` OK
fi	
