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In this lesson we are
going to explore Linux task scheduling.

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So what
are the options?

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First option is Cron. That's a classical
solution. It allows you to schedule recurring tasks.

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It has been around forever and it uses a Chrome
daemon and you can use crontab e to edit the tasks.

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Then there is add is for tests
that you need to run once only.

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That's a fun little solution. It's not used that
much but it might be convenient if you want to

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use it. Make sure that the D daemon is
started and use on the command line to schedule tasks.

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Then there is a newer
solution which is the systemd timer.

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So systemd timers are the new
alternative to CRON and on some distributions

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like Red Hat you will see
that timers are used instead of Cron.

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They create a timer unit and
these timer units are used using systemctl.

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In the next couple of videos
we will explore how it works.