Ubuntu 20.04: Connect to WiFi from command line

Lubos Rendek Ubuntu May 13, 2020 12:46 PM (GMT+9)

In this tutorial you will learn how to connect to WiFi from command line using Netplan. This could be useful if you are running a headless

Ubuntu 20.04

system such as server or Ubuntu 20.04 on Raspberry Pi.

In this tutorial you will learn:

• How to identify the name of your wireless network interface
• How to configure Netplan to connect to wireless network (SSID)

Ubuntu 20.04: Connect to wifi from command line with Netplan

Software Requirements and Conventions Used

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Ubuntu 20.04: Connect to WiFi from command line with Netplan step by step instructions

1. First step is to identify the name of your wireless network interface. To do so execute:Depending on your Ubuntu 20.04 system the wireless network interface name would be something like: wlan0 or like in this case it is wlp3s0.

   $ ls /sys/class/net
   enp0s25  lo  wlp2s0
   

2. Next, navigate to the /etc/netplan directory and locate the appropriate Netplan configuration files. The configuration file might have a name such as 01-network-manager-all.yaml or 50-cloud-init.yaml.

   $ ls /etc/netplan/
   
   

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