File Compression with 'tar' command
Parameters#
Common Options | - |
---|---|
-c —create | Create a new archive. |
-x —extract | Extract files from an archive. |
-t —list | List the contents of an archive. |
-f —file=ARCHIVE | Use archive file or dir ARCHIVE. |
-v —verbose | Verbosely list files processed. |
Compression Options | - |
-a —auto-compress | Use archive suffix to determine the compression program. |
-j —bzip2 | Filter the archive through bzip2. |
-J —xz —lzma | Filter the archive through xz. |
-z —gzip | Filter the archive through gzip. |
## Compress a folder | |
This creates a simple archive of a folder : |
tar -cf ./my-archive.tar ./my-folder/
Verbose output shows which files and directories are added to the archive, use the -v option:
tar -cvf ./my-archive.tar ./my-folder/
For archiving a folder compressed ‘gzip’, you have to use the -z option :
tar -czf ./my-archive.tar.gz ./my-folder/
You can instead compress the archive with ‘bzip2’, by using the -j option:
tar -cjf ./my-archive.tar.bz2 ./my-folder/
Or compress with ‘xz’, by using the -J option:
tar -cJf ./my-archive.tar.xz ./my-folder/
Extract a folder from an archive
There is an example for extract a folder from an archive in the current location :
tar -xf archive-name.tar
If you want to extract a folder from an archive to a specfic destination :
tar -xf archive-name.tar -C ./directory/destination
List archive content
There is an example of listing content :
tar -tvf archive.tar
The option -t
is used for the listing. For listing the content of a tar.gz archive, you have to use the -z
option anymore :
tar -tzvf archive.tar.gz
Compress and exclude one or multiple folder
If you want to extract a folder, but you want to exclude one or several folders during the extraction, you can use the --exclude
option.
tar -cf archive.tar ./my-folder/ --exclude="my-folder/sub1" --exclude="my-folder/sub3"
With this folder tree :
my-folder/
sub1/
sub2/
sub3/
The result will be :
./archive.tar
my-folder/
sub2/
Strip leading components
To strip any number of leading components, use the —strip-components option:
--strip-components=NUMBER
strip NUMBER leading components from file names on extraction
For example to strip the leading folder, use:
tar -xf --strip-components=1 archive-name.tar
List contents of an archive
List the contents of an archive file without extracting it:
tar -tf archive.tar.gz
Folder-In-Archive/
Folder-In-Archive/file1
Folder-In-Archive/Another-Folder/
Folder-In-Archive/Another-Folder/file2