Need to disable sleep

[takeawaydave]

I have Ubuntu 18.04.6 LTS running on a Dell Optiplex machine.

A few years ago I configured it to sleep every 2 hours. Now I need it to never sleep however can‘t for the life of me remember how to do this.

Could some please help me and provide details on how I can configure it to never sleep.

[Jaxilian]

Hi, look at this link https://askubuntu.com/questions/1062...n-ubuntu-18-04

[takeawaydave]

Thanks @jaxilian unable to run Tweak Tool since I am running without graphical interface. I‘ve tried the following:
https://www.tecmint.com/disable-susp...tion-in-linux/
Waiting to see if this helps.

[takeawaydave]

Ok that didn‘t work

[#&thj^%]

Ok that didn‘t work

Show the result of:

systemctl status sleep.target

Like:

systemctl status sleep.target
○ sleep.target - Sleep
     Loaded: loaded (/usr/lib/systemd/system/sleep.target; static)
     Active: inactive (dead)
       Docs: man:systemd.special(7)

All right then to disable:

 sudo systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target

Result:

Created symlink /etc/systemd/system/sleep.target → /dev/null.
Created symlink /etc/systemd/system/suspend.target → /dev/null.
Created symlink /etc/systemd/system/hibernate.target → /dev/null.
Created symlink /etc/systemd/system/hybrid-sleep.target → /dev/null.

Now:

systemctl status sleep.target
○ sleep.target
     Loaded: masked (Reason: Unit sleep.target is masked.)
     Active: inactive (dead)

If the occasion arises to re-enable it:

sudo systemctl unmask sleep.target suspend.target hibernate.target hybrid-sleep.target

Result:

Removed /etc/systemd/system/sleep.target.
Removed /etc/systemd/system/suspend.target.
Removed /etc/systemd/system/hibernate.target.
Removed /etc/systemd/system/hybrid-sleep.target.