How to use the command line to manage Wi-Fi networks in Linux and improve wireless connection efficiency

When we use Linux systems for network connections daily, we are usually accustomed to using graphical interfaces to manage Wi-Fi networks. However, when we need to use remote SSH or connect wirelessly without a desktop environment, relying solely on graphical tools is no longer enough. Therefore, in this article, we will introduce to you how to use the command line to manage Wi-Fi networks in Linux, which can help us better deal with various network connection problems and improve wireless connection efficiency.

Project requirements: The user enters the wifi name and password on the web side, and the client can connect through the information sent by the server

Technical research: I mentioned the nmcli command before, and this time it comes again

       连接:nmcli device wifi connect wifiname password wifipasswd
       删除:nmcli con del wifiname
       启动:nmcli connection up wifiname
       关闭:nmcli connection down wifiname

If the wifi is hidden, then the above method will not work. Here I am making a supplement:

Add according to the wifi name and wifi device (INTERFACE): nmcli c add type wifi con-name "NAME" ifname "INTERFACE" ssid "SSID" Just write the wifi name for NAME and SSID here, INTERFACE is the wifi DEVICE (nmcli device status can be viewed)

Set the wifi connection encryption method and password:

nmcli c modify "NAME" wifi-sec.key-mgmt wpa-psk wifi-sec.psk "PASSWORD"
启动wifi：nmcli c up "NAME"
关闭wifi：nmcli c down "NAME"

Through the introduction of this article, we can see that there are many command line tools in Linux systems that can be used to manage Wi-Fi networks, such as iwconfig, iwlist, nmcli, etc. These commands can help us quickly scan, connect and disconnect from Wi-Fi networks, and even view detailed information such as wireless channels and signal strength. By using these tools, we can better deal with various network connection problems and improve the efficiency of wireless connections in Linux systems.

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