What are the steps to configure a wireless network card in Linux?

Setting up a wireless network card in a Linux system involves the following steps:

1. Open the terminal and type the command iwconfig to check if there is a wireless network card in the current system, and make a note of its name, usually wlan0 or wlp2s0, etc.
2. Activate the wireless network card by entering the command “sudo ifconfig wlan0 up” (assuming the wireless network card is named wlan0).
3. Scan for available wireless networks, input the command sudo iwlist wlan0 scan | grep ESSID to list the names of the surrounding networks.
4. Connect to a wireless network by entering the command “sudo iwconfig wlan0 essid” followed by the network name and password, replacing “network name” and “password” with the actual name and password.
5. Obtain the IP address by entering the command sudo dhclient wlan0 to fetch the IP address of the wireless network card.

Once you have completed the above steps, your wireless network card will have been successfully configured and connected to the wireless network. If you want to automatically connect to the wireless network every time the system boots up, you can add the above command to the startup script.