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In this video we'll discuss
some essentials for working with directories.

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So CD is what you use to change directory
and MKDIR allows you to create a new directory.

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If you use MKDIR P, you
can create an entire new directory path,

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as in MKDIR P my new
files without a P it would fill

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and with a P you create
the entire path and then rmdir.

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Well, in fact, RMDIR is a useless command. It
removes the directory, but it only works if the

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directory is empty. Better use RM RF because that
also works if there is files in the directory.

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Let's check
it out.

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I'm starting by using CD without
any arguments. Did you notice what happens?

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It brings me to my home directory and
that is what CD without arguments is always doing.

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I want to be in my home directory
because otherwise I don't have any write permissions.

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Now I'm going to use
an MKDIR data and. Oh boy,

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what is happening here? Well,
we have a permission denied.

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That's because the only location where as an ordinary
user I can create files is in my home directory.

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If I really wanted to create this directory data,
I need to put sudo in front of it.

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So then I need to enter my
sudo password and now it is created. Let's

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check it out using LS LD data
and there we can see that it exists.

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Now in fact, I don't want to
have this directory data, so I'm using RMDIR

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and that is even working because I
did not create any files in there.

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Now how about MKDIR files? Data that doesn't
work for the simple reason that I'm trying

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to create directory data in the directory
files, but the directory files does not exist.

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Simple solution, add P to it and
that will create the entire directory path.

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That's about all that you need to
know for now about working with directories.