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[#](#) Connect to wifi network from command line in linux #
For full article see [the blackmoreops site:](https://www.blackmoreops.com/2014/09/18/connect-to-wifi-network-from-command-line-in-linux/)
1. Find Available Wifi adapters.
`# iw dev`
2. Check Device Status.
Check to see if the adapter is up/down.
`# ip link show DEVICE_NAME`
(where DEVICE_NAME is wlan0, eth0 etc).
Look for the word UP inside the brackets in the first line of output
3. Bring up the Wifi interface.
`# ip link set wlan0 up`
You can check the device status again as in step 2.
4. Check the connection status.
`# iw wlan0 link`
5. Scan to Find the Wifi network.
`# iw wlan0 scan`
6. Generate a wpa/wpa2 config file.
`# wpa_passphrase WIFI-SSID >> /etc/wpa_supplicant.conf`
`# networkpassword`
7. Connect to wifi network.
Once there is a configuration file it can be used to connect to the network.
`# wpa_supplicant -B -D wext -i wlan0 -c /etc/wpa_supplicant.conf`
where -B means run in background
-D specifies the the wireless driver (wext is generic wireless driver).
You can then check connection status as in step 4.
8. Get an IP using dhclient.
`# dhclient wlan0`
IP address can then be vewrified with:
`ip addr show wlan0` or `ifconfig wlan0`
Then we check that we have the proper routing rules.
`ip route show`
If we need to add routing manually:
`ip route add default via 10.0.0.138 dev wlan0`
9. Test connectivity.
Ping google to check connectivity.
`# ping 8.8.8.8`
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