WIFI configuration guide under Linux terminal

Install the dependency (if nmcli is not already available in your system):

sudo apt install network-manager

List connections:

nmcli con show

Check interface status:

nmcli device status

Check if WIFI is enabled:

nmcli radio wifi

Enable WIFI:

nmcli radio wifi on

Scan for WIFI:

sudo nmcli device wifi rescan

List available WIFI:

nmcli device wifi list

Connect to specified network, require nmcli to prompt you for password (which avoids writing out your password on screen). Assuming that the SSID of the network is hotspot and the interface is wlan0:

sudo nmcli --ask device wifi connect hotspot ifname wlan0

Optional configurations

Automatically connect to the WIFI at startup

Set the connection to auto-connect:

sudo nmcli connection modify "hotspot" connection.autoconnect yes

Set the connection to be available to all users:

sudo nmcli connection modify "hotspot" connection.permissions ""

Check the details of a connection

nmcli connection show "hotspot"

Delete a connection profile

sudo nmcli connection delete "hotspot"

References

https://www.makeuseof.com/connect-to-wifi-with-nmcli/

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