Let’s Decompress A File (tar.gz) In The Terminal

Pretty much every Linux user has to look up how to decompress a file in the terminal. Ask them to do it by rote and they’ll balk, but it’s actually pretty easy. Heck, there are entire jokes and comic strips dedicated to it. The thing is, it’s actually pretty easy and this article is going to show you how.

The tool we’ll be using for this is called ‘tar’ and the man page helpfully describes it like this:

tar – an archiving utility

If one is curious, the .gz is for gzip. It’s both a file format and a compression utility. The .tar is a container for multiple files. Its name comes from tape archive, where one would store multiple compressed files in one file. Think of it as a container for .gz files, if that helps.

Today’s article is meant to be REALLY basic, so we’re only going to approach this with the tar command. The only goal of this article is to teach you how to decompress a .tar.gz from the terminal. (There are a dozen GUI ways to do this, but not all systems have a GUI available.)

Decompress A File:

This article requires an open terminal. You can do so with your keyboard – just press CTRL + ALT + T and your default terminal should open.

You’ll also need a .tar.gz, but I’m going to assume you already have. If you don’t have one, you’re bound to reach that eventuality so long as you continue to use Linux. It’s a preferred file distribution format for things like source code. 

Anyhow, it’s really simple. Navigate to the folder where your .tar.gz file exists and run the following command:

You really only need to remember the vzf. In order, those stand for verbose (tells you what’s going on), z (decompress the files inside), and f (means the name of the file you’re working on).

The x flag means extract and we’ll get back to that in a moment.

You can even tell tar to extract the files in a specific directory. That’d look like this:

But, that’s not too terribly important, so long as you clean up after yourself and don’t leave a bunch of clutter. 

Let’s get back to that x flag. See, if you want to go the other way, that is to compress some files, you just change the x to a c.

In this case, we’re only to cover compressing all the files in a specific folder. That’s a little something like this:

So, really, you only need to remember the “vzf” and x for extract or c for compress. That’s the basics of decompressing a file in the terminal. There are a zillion possible combinations and the man page for tar is about a mile long.

In the vast majority of cases, those are the only two ways you’re going to use the command. If you need something more specific, check man tar.

Closure:

And, there you have it. You have the very basics on how to decompress a file from the terminal. There’s a lot more to the tarball but we really don’t need to cover that. If you need more, there’s the manual – but you probably won’t need more than that.

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Last Updated on January 29, 2022 by KGIII

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Author: KGIII

Retired mathematician, residing in the mountains of Maine. I may be old and wise, but I am not infallible. Please point out any errors. And, as always, thanks again for reading.

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