Linux Package Management: Keeping Up with the Times
Tarballs

Dee-Ann LeBlanc
Monday, April 22, 2002 10:11:13 AM
The basic package management unit in the Linux world is the tarball (which
is in fact still the tool of choice in distributions such as Slackware). I
use the term package management loosely here. What sets RPM and DEB apart
from a tarball is that a tarball contains just the package and what it
needs to function, while an RPM or DEB includes fancy setup widgets, and
databased information about the package installed, their components, and
more.
A tarball is made up of two separate components. The inner wrapper
contains the tar portion of the package, which contains files,
directories, the requisite permissions, and more, unless you specified
otherwise. A good read through man tar is quite educational. In its basic
form, we usually utilize tar in two different ways. Mostly it's to extract
the contents of the archive in a format similar to:
tar xvf file.tar
The x is the key, for eXtract, the v gives verbose output and shows you
where everything's going, and the f says you're specifying the file name.
There are a number of flags you might want to use when creating an
archive, but a good basic approach typically involves:
tar cvf file.tar items_to_archive with spaces /in/between
To then compress the archive, since it's probably huge, you just type:
gzip file.tar
The resulting file is file.tar.gz. A great shortcut is:
tar zcvf file.tgz items_to_archive with spaces /in/between
The z compresses the package automatically once it's been created.
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