4 [ ! -e /sys
/class
/net
/$nic ] && exit 0
6 start-stop-daemon
-K -q -p /var
/run
/dhcpcd-
$nic.pid
> /dev
/null
2>&1
7 start-stop-daemon
-K -q -p /var
/run
/wpa_supplicant.pid
> /dev
/null
2>&1
8 rm -f /var
/run
/wpa_supplicant.pid
9 ip link
set dev
$nic down