===== RPM =====
Redhat Package Manager -- now recursive -- RPM Package Manager -- after being adopted by multiple distros.

Package file naming conventions (NOT A REQUIREMENT):
  * //packagename-a.b.c-x.arch.rpm//
    * **Package Name** - name of package, like.. samba
    * **Version Number** - (a.b.c) this is the package version number like 3.6.5 -- the programmer assigns this number.
    * **Build Number** - number following version number (x) represents minor changes (patches, tweaks) made by package container.
    * **Architecture** - Defines the architecture the package was made to run on. i386 is common. there are further archs like: i586, i686, x86_64, PPC, noarch(scripts)


Operators:
  * **-i** -- Install
  * **-U** -- Upgrade if already installed
  * **-q** -- Query, get info about packages

===== DEB =====
====apt-get====
You can edit sources in /etc/apt/sources.list
<code>
deb     http://http.debian.net/debian wheezy         main
deb-src http://http.debian.net/debian wheezy         main
deb     http://security.debian.org/   wheezy/updates main
deb-src http://security.debian.org/   wheezy/updates main
</code>
deb entries specify debian PACKAGES where as deb-src specifies SOURCE PACKAGES, upon which to compile a package/program.

Useful commands:
  *apt-get update