Ubuntu 20.04 Execute command at system boot using crontab

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In case of Ubuntu 20.04 if we need to execute any command after system boot (the way used to happen via /etc/rc.d/rc.local long back), we can do the same via cron using:

1. Type below to open cron editing for current user (eg root)

   crontab -e

2. In the cron file enter command to be executed on boot *with full path* as:

   @reboot <full-path-of-command>

3. Optionally test by rebooting and validate.

Refer:

• https://superuser.com/questions/685471/how-can-i-run-a-command-after-boot

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