How to run a startup script using systemd

Today's tip is how to run a startup script using systemd. If everything you need is to run a simple startup script when you boot into Linux, there's no need to become an expert in systemd. Below are the files I used on this video.

#!/bin/sh

hdparm -Y /dev/sdb

[Unit]
Description=Startup

[Service]

[Install]

[tomasz-konstantinakula-aga]

Simple and Educative. Works Like A Charm. Cheers!

[Adnan]

"Use linux long and prosper" subscribed!

[Rorrox]

A lot of help :D Everytime i install any linux in my notebook, i MUST create an Anti-Throttle startup script, otherwise, my notebook become almost unusable. Thank you so much.

[PotentialEnrgy]

This helped me a lot using Pure OS thank you!

[vladislavkaras]

Thank you!
With help of your video my CPU undervolts at boot.

[byzantineJesusLovR]

Thanks so much. As someone who is new to Linux, this has been a VERY helpful video. <3 <3 <3

[amathenge]

Excellent. Used this to load modules that were failing at boot on my PowerMac G5 running Debian. Thank you, and well done!

[ignaciodamiang]

Thank you very much man! It is very much appreciated!

[Tech_Brigadier]

amazing content bro keep it up just subscribed to your channel

[dropcake]

Thank you very much. It worked perfectly.

[isuruthiwanka]

Im using Deepin OS.
I wanna run " sudo cpupower frequency-set -g powersave -d 0.4G -u 1.0G" at boot.
I did same as the video tells.
But no hope.
It doesnt work.😔😔😔😔😔

[auroramonet]

Video Summary

1) put your script at /usr/local/sbin/

2) make it executable

3) create your .service file in /etc/systemd/system

4) your.service file:
[Unit]
Description=yourscript

[Service]


[Install]
WantedBy=multi-user.target

5) sudo systemctl enable your.service

check it working:
1) systemctl start your.service

2) systemctl status your.service

[MadviIIains]

came back after rebooting just to like the video. I setup a script to fix an error with Dayz not booting unless a command was written in terminal.

[userwww]

What is the difference between this approach and using cron to run a script at reboot?

[gautamkartik]

Thank you so much, this is only tutorial working on my ubuntu. I tried everything but nothing worked.

[madsli]

WHAT DID YOU DO AT 1:26? HOW DID YOU GO BACK?

[reflexsamurai]

hdparm -Y /dev/sdb

as from here and you switch back to the main terminal, if I close the (hdparm -Y /dev/sdb) screen they will kill everything so I am not sure how to switch back to the terminal? Sorry I am very new to linux!

[icewatermansion]

That worked perfectly, thank you so much!

[arrowhead]

HELLO SIR PLEASE I NEED YOUR HELP!!! I am trying to configure this file on an sdcard to boot up my raspberry pi that is headless so it starts ssh. I am having trouble with the last part, enabling the service, because I cannot actually access the system to give it that permission using sudo. Please I need help reply

[Prakhar_Choubey]

I followed exactly as you did but something seems to be wrong. Could you please tell what might have gone wrong ? I am on Kali Linux
"Linux kali 5.9.0-kali4-amd64 #1 SMP Debian 5.9.11-1kali1 (2020-12-01) x86_64 GNU/Linux"