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How to Create and Extract Archives Using the Tar Command in Linux
In this tutorial, we will show you how to use the Tar utility to extract and create tar archives through practical examples and detailed explanations of the most common Tar options.
What is Tar?
tar command is used to create tar archives by converting a group of files into an archive. It also has ability to extract tar archives, display a list of the files included in the archive, add additional files to an existing archive, as well as various other kinds of operations.
Tar supports a vast range of compression programs such as
compress. When creating compressed tar archives it is an accepted convention to append the compressor suffix to the archive file name. For example, if an archive has been compressed with gzip it should be named archive.tar.gz.
Tar was originally designed for creating archives to store files on magnetic tape which is why it has its name “Tape ARchive”.
Tar Command Syntax
Before going into how to use the tar command, let’s start by reviewing the basic syntax.
tar [OPERATION_AND_OPTIONS] [ARCHIVE_NAME] [FILE_NAME(s)]
OPERATION- Only one operation argument is allowed and required. The most frequently used operations are:
-c) - Create a new tar archive.
-x) - Extract the entire archive or one or more files from an archive.
-t) - Display a list of the files included in the archive
OPTIONS- The most frequently used operations are:
-v) - Show the files being processed by the tar command.
-f archive-name) - Specifies the archive file name.
ARCHIVE_NAME- The name of the archive.
FILE_NAME(s)- A space-separated list of file names to be extracted. If not provided the entire archive is extracted.
When executing tar commands, you can use the long or the short form of the tar operations and options. The long forms are more readable while the short forms are faster to type. The long form options are prefixed with a double dash (
--). The short form options are prefixed with a single dash (
-) which can be omitted.
Creating Tar Archive
-c operator to create a tar archive. For example, to create an archive file named
archive.tar from the files named
file3, run the following command:
tar -cf archive.tar file1 file2 file3
Here is the equivalent command using the long form options:
tar --create --file=archive.tar file1 file2 file3
The following example will create an archive named
backup.tar from the
tar -cf backup.tar /home/username
You can create archives from the contents of one or more directories or files. By default directories are archived recursively unless
--no-recursion option is specified. Use the
-v option if you want to see the files that are being processed.
Creating Tar Gz Archive
Gzip is the most popular algorithm for compressing tar files. When compressing tar archives with gzip the archive name should end with either
To create a tar.gz archive from given files you can use the following command:
tar -czf archive.tar.gz file1 file2
-z option tells tar to compress the archive using the
gzip algorithm as it is created.
Creating Tar Bz2 Archive
Another popular algorithm for compressing tar files is bzip2. When compressing tar archives with bzip2 the archive name should end with either
-j option is specified tar will use
bzip2 algorithm to compress the archive.
The following command will create a
tar.bz2 archive from given files:
tar -cjf archive.tar.bz2 file1 file2
Listing Tar Archives
To list the content of a tar archive use the
tar -tf archive.tar
file1 file2 file3
If you list the content of the archive using the
-v) option, then tar will print more information such as owner, file size, timestamp ..etc:
tar -tvf archive.tar
-rw-r--r-- linuxize/users 0 2018-09-08 01:19 file1 -rw-r--r-- linuxize/users 0 2018-09-08 01:19 file2 -rw-r--r-- linuxize/users 0 2018-09-08 01:19 file3
Extracting Tar Archive
To extract a tar archive use the
-x) operator and specify the archive file name:
tar -xf archive.tar
It is also common to add the
-v option to print the names of the files being extracted.
tar -xvf archive.tar
By default tar will extract the archive contents in the current working directory. Use the
-C) to extract archive files in a specific directory:
For example, to extract the archive contents to the
/opt/files directory, you can use:
tar -xf archive.tar -C /opt/files
Extracting Tar Gz and Tar Bz2 Archives
When extracting compressed archives such as
tar.bz2 you do not have to specify a decompression option. The command is same as when extracting
tar -xf archive.tar.gz
tar -xf archive.tar.bz2
Extracting Specific Files from a Tar Archive
To extract specific file(s) from a tar archive, append a space-separated list of file names to be extracted after the archive name:
tar -xf archive.tar file1 file2
When extracting files, you must provide their exact names including the path, as printed by
Extracting one or more directories from an archive is same as extracting files:
tar -xf archive.tar dir1 dir2
If you try to extract a file that doesn’t exist, an error message similar to the following will be displayed:
tar -xf archive.tar README
tar: README: Not found in archive tar: Exiting with failure status due to previous errors
Extracting Files from a Tar Archive using Wildcard
To extract files from an archive based on a wildcard pattern, use the
--wildcards switch and quote the pattern to prevent the shell from interpreting it.
For example, to extract files whose names end in
tar -xf archive.tar --wildcards '*.js'
Adding Files to Existing Tar Archive
To add files or directories to an existing tar archive, use the
For example to add a file named
newfile to archive.tar, you can use:
tar -rvf archive.tar newfile
Removing Files from a Tar Archive
--delete operation to remove files from an archive.
For example to remove a file named
file1 from archive.tar, you can use:
tar --delete -f archive.tar file1
By now you should have a good understanding on how to create and extract tar archives. For more information about the tar command, consult the Gnu tar documentation page.