How to check wireless signal strength in Ubuntu?

@emie 

In Ubuntu, you can check the wireless signal strength using the following steps:

1. Open the Terminal by pressing Ctrl+Alt+T.
2. Type the following command and press Enter:

1

iwconfig

1. Look for the wireless interface name (usually wlan0 or wlp2s0) in the output.
2. Look for the "Signal level" or "Signal quality" line in the output, which will show you the current signal strength in decibels (dBm) or as a percentage.

Note: The higher the number or percentage, the stronger the signal. A signal strength of -70 dBm or higher is considered good, while a signal strength of -90 dBm or lower is considered poor.

You can also use other command-line tools like nmcli or graphical tools like the default Network Manager applet to check wireless signal strength in Ubuntu.