How to find status of wlan0?
The current (in 2017) methods are:
ip
for all network interfaces, including setting up and down:ip link set wlan0 up ip link set wlan0 down ip help ip link help ip addr help
iw
for wireless extensions (needs to be called as root):iw dev iw phy iw wlan0 scan iw wlan0 station dump iw help
ifconfig
and iwconfig
are still supported with the appropriate packages, but some features are only available with ip
and iw
.
The net-tools
program is deprecated and the iproute2
has been used to replace it :
program obsoleted by
arp ip neigh
ifconfig ip addr
ipmaddr ip maddr
iptunnel ip tunnel
route ip route
nameif ifrename
mii-tool ethtool
The ip show
will display the state of your network interface.
in addition there are some others tools will help you to get the state of your network interface :
cat /sys/class/net/<interface>/carrier
sample output:
1
the 1
mean your interface is up
and 0
is down.
Or simply you can use the following command :
cat /sys/class/net/<interface>/operstate
sample output:
UP
or
DOWN