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- All right.

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In this lesson, we have
seen many commands.

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Let's go check them out.

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It started with rpm,

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the command that previously
was used to install packages

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and nowadays is mainly
useful for querying packages.

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Yum, as well as dnf, are
the software managers

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in record environments,

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your main source for installing packages,

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and apt is the equivalent in Ubuntu.

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Apt-cache is a useful command

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because there is apt-cache
search which allows you to search

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for packages containing a specific file.

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And that's really useful if you don't know

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the name of the packages that you need.