====== Archives ======

===== gzip files =====

Use gzip to compress a file:

<code bash>
gzip file1.txt 
</code>


Uncompress a gzip file:

<code bash>
gzip -d file1.txt.gz
</code>

----

===== bzip files =====

Use bzip2 to compress a file:

<code bash>
bzip2 file1.txt
</code>

Uncompress a bzip2 file:

<code bash>
bzip2 -d file1.txt.bz2
</code>

----

===== jar files =====

See: http://www.coderanch.com/t/505258/Applets/java/pack-gz-file-unpack-create


Pack a jar file.

<code bash>
pack200 archive.pack.gz archive.jar
</code>

Unpack a jar file.

<code bash>
unpack200 archive.pack.gz archive.jar
</code>


List the content of a jar archive.

<code bash>
unzip -l archive.jar
</code>

----

===== tar files =====

Use tar to collect a bunch of files into one file.

Tar and compress all files in /opt into file called opt.tar.gz

<code bash>
tar czvf opt.tar.gz /opt
</code>

Untar files back to /opt

<code bash>
tar xvzf opt.tar.gz /opt
</code>

----

===== tar.bz files =====

Tar and compress all files in /opt into file called opt.tar.bz

<code bash>
tar cjvf opt.tar.gz /opt
</code>


Extract a tar.bz2 file.

<code bash>
tar -jxvf filename.tar.bz2
</code>

----

===== star files =====

Use star to archive files on a system using SELinux

Install star.

<code bash>
yum install star
</code>

Create file opt.star and save all extended attribs record headers with acl

<code bash>
star -xattr -H=exustar -c -f=opt.star /opt/
</code>

Extract a star archive.

<code bash>
tar -x -f=opt.star
</code>

----

===== zip files =====

List the content of a zip archive.

<code bash>
unzip -l archive.zip
</code>