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- In the previous video,

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you have learned how to work with find,

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and you have seen that
find is pretty powerful.

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If you think that's all, well,
I have a few more commands

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that I would like to discuss.

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For your convenience, I put
them on the slide right here,

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and I'm going to run them for you.

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Oh, and just a tip,

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you better run them with sudo privileges,

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at least most of them.

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Let's go.

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So let me start with sudo find /

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minus type f.

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Minus type f is looking for
items that are of the type f,

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which is ordinary files.

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Minus size, +100M, which is
showing files with a size

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bigger than 100M.

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Only files.

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The thing here is that if in
find you are going to look

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for specific items, you don't
want to see any directories

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or whatever, so this is
looking for files only.

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Second example is sudo find

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/etc -exec

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grep -l student.

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Based on what we have done
before, you should be able

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to identify what this is doing.

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This is looking for files
in /etc, and in these files,

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it will use grep -l student,

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which means that it is
looking in the file contents

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to see if the text student occurs

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somewhere in the file contents.

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And next I want to run a second -exec,

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and yes, that is
something that you can do.

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Second -exec cp, we are
going to copy these files.

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Curly braces to, well,
let's copy it to /root/linda

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because that's an existing
directory, backslash semicolon.

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The point here is that I wanna show you

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that you can use multiple exec statements

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on one find command.

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And this is how you do it.

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Now the third one is find /etc

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minus name, star.

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I wanna find all files, -type f.

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Notice that you might
as well drop -name star

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because if you dropped it,
then it'll find all files also.

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Then I'm going to use xargs.

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Xargs is an alternative way

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for sending the output of the find command

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to another command.

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And the xargs this time is going to look

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for the occurrence of
the text grep 127.0.0.1.

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And there we go.

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And oh, too many error messages.

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Let me use 2>/dev/null again
so that we don't have to look

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at the error messages,

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and we only see what is being produced.

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Now hey, this is interesting.

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Do you see what's happening here?

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I still see error messages.

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And you know why?

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Well, that's because of the pipe.

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I'm using the pipe here.

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Before the pipe, we have the find command.

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After the pipe, we have the xargs command.

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It is not xargs that is
generating all of these errors.

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It's find that is generating
all of these errors,

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or maybe it's even worse,
and maybe it's both of them.

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And if I don't want to
see any errors anymore,

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then I also need 2> to
/dev/null before the pipe.

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And now we can only see the result.

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And the result is a list of files

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that contain the text 127.0.0.1.

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Now you can also do
some formatting in find.

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Now let me do find /etc

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minus name,

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*conf.

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And there we go.

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We have configuration files.

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Now this is what we see by default.

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And the nice thing is that find allows you

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to do some formatting on that.

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So if I add -printf,

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the -printf allows me to do formatting.

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And in this formatting, I am
going to specify how I want it

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to be printed, %s, comma,

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%p\n, closing quote,

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which is doing what?

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This is giving me additional information.

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And as you can see, I get information

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about the size of the
file in the first column,

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and then I have the name of the file.

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And it's separated with
a comma and a space.

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And if you want to,
you can even sort that.

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That's a new utility that we will discuss

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in more detail later.

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Sort -rn, which is doing
a reverse numeric sort,

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so that you have the
biggest file on the top

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and the smallest file on the bottom.

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And that is how you can use
find in a more advanced way.