54
How to Get Wifi Signal Strength via CLI using nmcli on Fedora or Ubuntu
(blog.benyamin.xyz)
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 11 Aug 2024
54 points (89.7% liked)
Linux
48080 readers
902 users here now
From Wikipedia, the free encyclopedia
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.
Rules
- Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
- No misinformation
- No NSFW content
- No hate speech, bigotry, etc
Related Communities
Community icon by Alpár-Etele Méder, licensed under CC BY 3.0
founded 5 years ago
MODERATORS
iw dev <interface> station dumpwill 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.