rfkill --version (return code: 0)
rfkill 0.5-1ubuntu3 (Ubuntu)
rfkill --help (return code: 1)
Usage: rfkill [options] command
Options:
--version show version (0.5-1ubuntu3 (Ubuntu))
Commands:
help
event
list [IDENTIFIER]
block IDENTIFIER
unblock IDENTIFIER
where IDENTIFIER is the index no. of an rfkill switch or one of:
<idx> all wifi wlan bluetooth uwb ultrawideband wimax wwan gps fm nfc