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So congratulations.

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You've made it to the end of this section of the course.

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All about the Linux file system.

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Now being able to effectively navigate the Linux file system and work with files is likely going to

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be skills that you will use over and over and over again.

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So congratulations for making it this far.

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So so to celebrate your success so far in the course in this video, I want to have a quick review of

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what we have covered in this section so you can see just how far that you have come.

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So we first started off with a discussion of the structure of the Linux file structure of the last file

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system.

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Sorry.

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And you saw that the whole file system has a tree like structure starting with a root directory and

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branching out from there.

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And once you understood that the structure of the file system and had a map to work with, you learned

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how to tell where your shell is currently operating from using the P command.

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Now PWT stands for print working directory and it basically prints out on your screen the location that

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your shell is currently operating in.

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And you also learn that you can do the same thing by glancing at your shell prompt, which is the bit

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of text in your terminal on the left where you enter your commands.

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Now, once you saw how to find out where you are, you saw had to move around the file system and change

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directories using the CD command and how to look around by listing out the contents of directories using

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the LS command.

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Now, after learning these critical navigation commands, you had a discussion about the meaning of

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file extensions in Linux and you saw that file extensions don't matter much Linux but might matter to

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the programs running on it.

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Now this means that you have the flexibility to give files, whatever names that you want.

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But just remember that you might want to stick to standard file conventions.

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If you're expecting those files to be used by other programs, then you learned about a feature of the

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shell that I'm sure you fell in love with by now, which is wildcards.

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Now, wildcards allow you to operate on many different files at once and just operate on specifically

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what you are looking for which which saves you lots of time and typing and basically makes your commands

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a whole lot more powerful.

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Now, once you had got those very important basics down, you learned a whole bunch of commands.

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You had to create files and directories, copy them, paste them, delete them, rename them, move

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them around, and also how to edit them with a command line based text file editor called Nano.

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But with all of this creation moving and editing of files, it's quite likely that at some point you

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won't know exactly where a file is created, are located, and you might need to find it.

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So you use the locate command to find files on your system and you learn that the Locate Command uses

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a database to find files and you saw how to use the update DB command to update this database.

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Now, for security reasons, updating the database requires elevated privileges that normal users don't

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have.

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So you saw how to use the sudo command to temporarily become the root user and do what you need to do.

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And you can use that for any command, not just the locate command.

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Now, although the locate command is awesome and can get the job done quickly, sometimes you need something

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a bit more customizable and heavy duty.

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So after learning about the Locate Command, you learned how to find files using the find command.

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Now the Find Command is a super powerful command that has loads of options to make sure that you can

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find whatever you want on your system.

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Now, it also has the added bonus that once you have found a bunch of files or directories with the

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find command, you can actually tell the find command to run another command or series of commands for

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each result that it finds.

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Now, this allows you to create incredibly powerful functionality with very little effort, and then

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you moved on to learn about how to look inside files using the cat command.

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You saw that you can also stick files together or concatenate different files using the command, and

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sometimes you need to reverse data.

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So you saw that you can reverse files vertically using the tac command or horizontally using the rev

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command.

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Now, sometimes when you open files or run commands, you get a whole lot of output on the screen and

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having it all on the screen at once is not very helpful.

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So you learned about the less page, a program that allows you to page through large amounts of text

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to make it more manageable.

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And you also learned a whole host of useful tactics for getting just what you want from a file.

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So does the head command, the tail command and grep command.

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Then you saw how to you can sort a files contents in a variety of different ways.

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And finally, we topped off the discussion with a look at file archiving and compression.

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Whew.

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So you've really learned a lot of stuff in this section and you should be incredibly proud of yourself.

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So well, well done.

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Now you will use the skills that you've learned here all the time with your work with the Linux command

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line.

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So it's a really amazing moment right now in your Linux skills development.

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So in the next section, you're going to learn about how you can schedule and automate tasks on your

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system using batch scripts and a super useful utility called Cron.

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But before we get to that, I have a project for you to complete.

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Now the project will challenge you to do various things with the Linux file system and use a whole bunch

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of the commands and build a really advanced pipeline.

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Now it's going to be awesome and it will serve as a badge of honor that you have learned everything

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that we've covered in this section of the course, so you can feel confident moving on.

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So in the next video, I'm going to be giving you a project brief.

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So congratulations once again for what you've done in this section.

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You're doing amazingly.

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I'm super proud of you, and I'll see you in the next video.