plan9fox/rc/bin/chdev

#!/bin/rc
rfork e

fn usage {
	echo 'usage:' $0 '[ -nr ] devmask' >[1=2]
	exit usage
}

op='&'
while(~ $1 -*){
	switch($1){
	case -n; op='~'
	case -r; op='&~'
	case *; usage
	}
	shift
}

echo chdev $op $1 >> '#c/drivers'
add chdev(1) 2022-05-28 02:25:56 +00:00			`#!/bin/rc`
chdev: dont pollute environment 2022-05-31 19:30:23 +00:00			`rfork e`
add chdev(1) 2022-05-28 02:25:56 +00:00
			`fn usage {`
			`echo 'usage:' $0 '[ -nr ] devmask' >[1=2]`
			`exit usage`
			`}`

			`op='&'`
			`while(~ $1 -*){`
			`switch($1){`
			`case -n; op='~'`
			`case -r; op='&~'`
			`case *; usage`
			`}`
			`shift`
			`}`

			`echo chdev $op $1 >> '#c/drivers'`