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I have these 2 commands

echo 0 | sudo tee /sys/module/snd_hda_intel/parameters/power_save_controller
echo 0 | sudo tee /sys/module/snd_hda_intel/parameters/power_save

which are used to remove sound from headphones when no video is being played. Source

Now instead of running these 2 commands every time, can I do something like when ever I want to run, I just 1 click on something and it runs or it auto runs every time my ubuntu starts. Thanks.

I have 20.04

Ahmad Anis
  • 207

1 Answers1

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To accommodate both requirements, you can create an executable shell script that can be executed via the command line or a double-click as well as something that is run at startup.

1 — Create a Shell Script

First, put the commands into a shell script. For example, in /home/{user}/iGotThePower.sh (do change the name if you'd like something more appropriate):

#!/bin/bash

echo 0 | sudo tee /sys/module/snd_hda_intel/parameters/power_save_controller
echo 0 | sudo tee /sys/module/snd_hda_intel/parameters/power_save

Be sure to replace {user} with your home directory name.

2 — Create a systemd service

Next, you'll need to create a file at /etc/systemd/system/iGotsPower.service (again, you can change this name):

[Unit]
After=network.service

[Service]
ExecStart=/home/{user}/iGotThePower.sh


[Install]
WantedBy=default.target

3 — Set Permissions

We'll need to make sure the permissions are correct:

$ sudo chmod 664 /etc/systemd/system/iGotsPower.service
$ sudo chmod 744 /home/{user}/iGotThePower.sh
$ sudo chmod +x /home/{user}/iGotThePower.sh

4 — Enable the Service Unit

Now that the basics are in place, we can enable the new service:

$ sudo systemctl daemon-reload
$ sudo systemctl enable iGotsPower.service

5 — Test with a Reboot

Now that all the core elements are in place, you can test this by rebooting. Double-clicking on the iGotThePower.sh file should also execute the script whenever you would like to have it run. Alternatively, you can open a terminal and type ./iGotThePower.sh to execute the two lines within.

Hope this gives you what you're looking for.