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- All right.

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I could make the command
review pretty easy this time.

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Systemctl is basically the
only command that we've seen,

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but it's really about a sub command,

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so let me go over them again.

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Systemctl start to start a unit file.

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Status to figure out
what the unit is doing.

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Early start to restart it,

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which is necessary if you
have changed something.

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Stop, which will stop it,

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or enable, which will enable it

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for automatic start on system boot.

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Disable it will remove it

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so that it's no longer
automatically started.

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We have seen list-units

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which is giving a list of all
the units currently loaded.

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And we have seen set-default,

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as well as get-default to change

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and to get the current
target that is started.

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Next, we have used systemctl cat

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which allows you to show the configuration

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of a current unit file.

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And systemctl show, which
is a command that allows you

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to see all the options that
you can set on unit files.

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Next level systemctl edit

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which you can use to edit unit files.

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And systemctl daemon-reload

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which is useful if you want to trigger

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the systemctl main process

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to update all of its configuration.

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Next of all, systemctl isolate,

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which allows you to go from
one target to another target.

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And systemctl list-dependencies

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which is showing all the dependencies

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that have been started
in a specific target.

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And also, to the end,
we have looked at WSL.

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In WSL we have the service command.

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And we have seen service SSH status

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which is telling us the current
status of the SSH server,

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and service SSH start,

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which is allowing you to
start this specific service.

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That's all the commands.

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Let's go check out the end of lesson lab.