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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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How to Get Wifi Signal Strength via CLI using nmcli on Fedora or Ubuntu (blog.benyamin.xyz)

submitted 2 months ago by [email protected] to c/[email protected]

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Hello, I just want to share here. Hopefully it's useful. Thanks

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[–] [email protected] 2 points 2 months ago

iw dev <interface> station dump will show every metric about the connection, including the signal strength and average signal strength.

It won't show it as an ascii graphic as with nmcli, but it shouldn't be hard to create a wrapper script to grep that info and convert it to a simplified output if you're willing to put in the effort of understanding the dBm numbers.

E.g. -10 dBm is the maximum possible and -100 dBm is the minimum (for the 802.11 spec), but the scale is logarithmic so -90 dBm is 10x stronger than the absolute minimum needed for connectivity, and I can only get ~-20 dBm with my laptop touching the AP.

Basically my point is that the good ol' "bars" method of demonstrating connection strength was arbitrarily decided and isn't closely tied to connection quality. This way you get to decide what numbers you want to equate to a 100% connection.