How to run a linux shell command at startup in Ubuntu 20.04?

Question

I came across several answers, which will not work. I mean this is not a hard requirement, right? It should be straightforward and answered straightforward.

Answer 1

I guess the best way is to use cron.
On your terminal, run crontab -e and add the following line:

@reboot <your_command>

The @reboot jobs will run when the cron daemon starts.

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