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- All right, let's have
a look at the commands

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that we've learned in this lesson.

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These were journalctl,

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which allows you to check the contents

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of the system D journal.

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Tail, we have seen tail and less before

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to view the contents of log valves.

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And we have seen logger

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which is a convenient command
that allows you to write

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to the log system.