ref: a5c95b4b01752b3ab38b44ab7a99a020739e3a80
dir: /sys/src/cmd/auth/disable/
#!/bin/rc
if(! ~ $#* 1){
echo 'usage: auth/disable user' >[1=2]
exit usage
}
if(test -e /mnt/keys/$1)
echo -n disabled > /mnt/keys/$1/status
if(test -e /mnt/netkeys/$1)
echo -n disabled > /mnt/netkeys/$1/status