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About Nassos Hasiotis

Nassos Hasiotis
Nassos has graduated from Computer Engineering and Informatics Department in the University of Patras. He also holds a Master degree in Communication and Network Systems from University of Athens. He has a 10-year work experience as a Java and C++ developer in the Telecommunication and IT industry participating in various projects. He currently works as a senior software developer in the IT sector where he is mainly involved with projects for the EU requiring extensive java skills.

Linux tar Examples

I am a real fan of learning Linux commands by examples and from my personal experience it will really help to see some Linux tar command examples. But first, a brief bit of background information. The name “tar” stands for “tape archive”.

As that name implies, originally it was a command that Unix administrators used to deal with tape drives. Where we now use the Linux tar command to create a tar file, we used to tell it to write the tar archive to a device file (e.g in /dev).

Nowadays the Linux tar command is more often used to create compressed archives that can easily be moved around, from one disk to anther disk or machine to machine, in other words we can call it as backup utility and its been used in most of the Unix flavors. One user may archive a large collection of files, and another user may extract those files, with both of them using the tar command.

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1. Create a tar archive of a directory

In this example we will come to know basic tar command using option ‘cvf’ to create a tar archive.
Here we are creating a tar file ‘my-archive.tar’ for a directory ‘/home/my-directory’ in current working directory:

[[email protected] /]# tar cvf my-archive.tar /home/my-directory

c – Creates a new .tar archive file
v – Verbosely list files which are processed
f – File name type of the archive file

2. Create a zipped archive

In order to make tar ball as zipped archive , we need to use the option “z”.
In below example the command will make “my-archive.tar.gz” for a directory “/home/my-directory” in current working directory.

[[email protected] /]# tar cvzf my-archive.tar.gz /home/my-directory

3. List the contents of a tar archive

To list the contents of an uncompressed tar archive, just replace the cflag with the tflag, like this:

[[email protected] /]# tar tvf my-archive.tar

This lists all the files in the archive, but does not extract them.
To list all the files in a compressed archive, add the zflag like before:

[[email protected] /]# tar tzvf my-archive.tgz

or for a tar.gz archive:

[[email protected] /]# tar tzvf my-archive.tar.gz

4. Extract tar archive contents

To extract the contents of a Linux tar archive, now just replace the tflag with the x(“extract”) flag. For uncompressed archives the extract command looks like this:

[[email protected] /]# tar xvf my-archive.tar

For compressed archives the tar extract command looks like this:

[[email protected] /]# tar xzvf my-archive.tar.gz

or this for *.tgz:

[[email protected] /]# tar xzvf my-archive.tgz

5. Extract tar.bz2 archive contents

In order to extract the contents of a *.tar.bz2 file the options are “xj”.

[[email protected] /]# tar xvjf my-archive.tar.bz2

The below image illustrates the commands seen so far:

Tar Commands (1)

Tar Commands (1)

6. Extract a single file from tar archive

To extract a specific file from a tar archive, specify the file name at the end of the tar xvf command as shown below. The following command extracts only a specific file (my-file.sh) in the current directory from a large tar file.

[[email protected] /]# tar xvf my-archive.tar my-file.sh

7. Create a compressed archive of the current directory

Many times when using the Linux tar command you will want to create an archive of all files in the current directory, including all subdirectories. You can easily create this archive like this:

[[email protected] /]# tar czvf my-directory.tgz .

In the above example, the ‘.’ at the end of the command is how you refer to the current directory.

8. Create an archive in a different directory

You may also want to create a new tar archive like that previous example in a different directory, like this:

[[email protected] /]# tar czvf /tmp/my-directory.tgz .

As you can see, you just add a path before the name of your tar archive to specify what directory the archive should be created in.

9. Extract a single directory from tar archive

To extract a single directory (along with its subdirectory and files) from a tar archive, specify the directory name at the end of the tar xvf command as shown below. The following extracts only a specific directory from a large tar file:

[[email protected] /]# tar xvf my-archive.tar home/my-directory/

Check below image for examples 6-9:

Tar Commands (2)

Tar Commands (2)

10. Extract a single directory from tar.gz archive

We just need to add “z” to the above extract command “xvf”

[[email protected] /]# tar xvzf my-archive.tar.gz home/my-directory/

11. Check the size of the tar, tar.gz and tar.bz2 Archive File

For any tar, tar.gz and tar.bz2 archive file, the below commands will display the size of archive file in Kilobytes (KB):

[[email protected] /]# tar -cf - my-archive.tar | wc -l
[[email protected] /]# tar -czf - my-archive.tar.gz | wc -l
[[email protected] /]# tar -cjf  - my-archive.tar.bz2 | wc -l

12. Verify integrity of tar file

As part of creating a tar file, you can verify the integrity of the archive file that got created using the option “W” as shown below:

[[email protected] /]# tar tvfW my-archive.tar

If an output line starts with Verify, and there is no differs line then the file/directory is OK. If not, you should investigate the issue.

Note: for a compressed archive file ( *.tar.gz, *.tar.bz2 ) you cannot do the verification.

13. Find the difference between an archive and file system

Finding the difference between an archive and file system can be done even for a compressed archive. It also shows the same output as above excluding the lines with Verify.

Finding the difference between gzip archive file and file system:

[[email protected] /]# tar dfz my-archive.tgz

Finding the difference between bzip2 archive file and file system:

[[email protected] /]# tar dfj my-archive.tar.bz2

14. Delete a file from tar ball

You can use the following syntax to delete a file from a tar ball:

[[email protected] /]# tar --delete -f my-archive.tar home/my-file

15. Add a file to an existing archive

You can add additional files to an existing tar archive with “r” option:

[[email protected] /]# tar rvf my-archive.tar my-file

16. Add a directory to an existing archive

Adding a directory is also the same. We need to mention the directory name instead of the file name:

[[email protected] /]# tar rvf my-archive.tar my-dir/

17. Extract group of files from tar, tar.gz, tar.bz2 archives using regular expression

You can specify a regular expressions , to extract files matching a specified pattern. For example, the following tar command extracts all the files whose file ends with .java:

[[email protected] /]# tar xvf my-archive.tar  --wildcards '*.java'

18. Untar multiple files from tar, tar.gz and tar.bz2 File

To extract or untar multiple files from the tar, tar.gz and tar.bz2 archive file. For example the below command will extract “my-file-1” “my-file-2” and “my-file-3” from the archive files:

[[email protected] /]# tar -xvf my-archive.tar "my-file-1" "my-file-2" "my-file-3"
[[email protected] /]# tar -zxvf my-archive.tar.gz "my-file-1" "my-file-2" "my-file-3"
[[email protected] /]# tar -jxvf my-archive.tar.bz2 "my-file-1" "my-file-2" "my-file-3"

19. Restore files with tar

More important than performing regular backups is having them available when we need to recover important files. The following command will restore all files from the full-backup-Day-Month-Year.tar archive, which is an example backup of our home directory:

[[email protected] /]# tar xpf /dev/st0/full-backup-Day-Month-Year.tar

The p option preserves permissions; file protection information will be remembered.

Some of the above examples are depicted in the below image:

Tar Commands (3)

Tar Commands (3)

20. Check the manual page for tar

You can always refer to the manual page for all available tar commands:

[[email protected] /]# man tar

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2 Comments on "Linux tar Examples"

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Use tar to move files….

tar cBf – . | ( cd /otherdir && tar xBf – )

tar cBf – . | ssh server “(cd /otherdir && tar xBf – )”


hey,nice examples of tar command.i am bookmarking it.