xset led xxx script

PowPaw · 2018-07-17 17:38:28

Hi guys, I'm running Arch Linux + xfce4 on my machine.
First of all I want to congratulate with every member of this wonderful arch linux forum.
Secondly, I'm going to excuse for any grammar/spelling mistake, since I'm not a native english speaker.
Ok, let's explain my problem. I have a cheap gaming keyboard, the one of the Cooler Master Storm Devastator kit. Since the 'Scr Lk' key's not working on linux, I'm bound to run the two famous commands 'xset led on' and 'xset led off' from the terminal every time I want to switch on/off my keyboard leds. Now, through the xfce settings I was able to link the 'xset led on' with the 'Scr Lk' button, but I would like to do something more: my dream would be to link 'xset led on' and '... off' both to the same key, so that the first time I press it a '... on' command would be executed, and then, alternatively, 'xset led off' and 'xset led on' again. Is it possible?
Thank you so much!

JohnBobSmith · 2018-07-18 01:05:38

PowPaw wrote:

First of all I want to congratulate with every member of this wonderful arch linux forum.
...
Secondly, I'm going to excuse for any grammar/spelling mistake, since I'm not a native english speaker.

Thanks, but why? No need to congratulate for anything at this time. Don't worry about your English, I can understand you just fine.

For your problem try something like this: https://unix.stackexchange.com/question … y-keyboard Specifically, the bash script they have given. I have modified it slightly. But I am unable to test if this works. Make your own adjustments as needed. Then bind scroll lock to launch this script:

#!/bin/sh

result=$(xset q | grep "Scroll Lock: off")
if [ -z "$result" ]; then
  echo "Off"
  xset led off
else
  echo "On"
  xset led on
fi

From my tests you might need to account for the spaced output from xset q in order to get grep to return the correct value. Play with this and see if it works.

jasonwryan · 2018-07-18 01:24:26

Moving to NC...

Trilby · 2018-07-18 01:43:57

I also cannot test it as I don't have that option in xset, but that script can be much simpler:

xset q | grep -q 'Scroll Lock: *on' && xset led off || xset led on

Most importantly, don't capture the output of grep just to test if it is empty, this is what `grep -q` is for. Using pseudo-ternary operators rather than a if else block is a style choice.

Last edited by Trilby (2018-07-18 01:45:31)

PowPaw · 2018-07-24 21:16:39

Thanks to have answered to my question. Excuse me not to have replied you soon, but I'm on holiday right now
On Thursday I'll be at home, so I can play and test the solution of your answers.
I'm going to post what it'll happen.

PowPaw · 2018-07-26 20:32:11

Ok, I've tried both soltutions, but neither of them worked.
@JohnBobSmith , what do you mean exactly with "Make your own adjustments as needed"?
I'm sorry, but Arch is one of my first linux distros xD
I've known lots of things just by being able to install it, so for me it's already a success.

Trilby · 2018-07-26 20:56:32

What does it mean that they didn't work?

What is the output of `xset -q`?

seth · 2018-07-26 21:02:25

"Does not work" is no useful information.

*How* does it "not work"? Does it fail to activate or deactivate the leds?
Did you try running the commands directly to rule out the shortcut binding failed?
What's the output of "xset q" after "xset led on" and "xset led off"? (There seems to be confusion about using the scroll lock as trigger what lead to the assumption you were controlling the scroll lock LED)

Arch Linux

#1 2018-07-17 17:38:28

xset led xxx script

#2 2018-07-18 01:05:38

Re: xset led xxx script

#3 2018-07-18 01:24:26

Re: xset led xxx script

#4 2018-07-18 01:43:57

Re: xset led xxx script

#5 2018-07-24 21:16:39

Re: xset led xxx script

#6 2018-07-26 20:32:11

Re: xset led xxx script

#7 2018-07-26 20:56:32

Re: xset led xxx script

#8 2018-07-26 21:02:25

Re: xset led xxx script

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