REDHAT _ _ _ _ _ _ _ _ _ _ _
 _     ___ _   _ _   ___  __
| |   |_ _| \ | | | | \ \/ /
| |    | ||  \| | | | |\  / 
| |___ | || |\  | |_| |/  \ 
|_____|___|_| \_|\___//_/\_\

RPM COMMANDS
..............................................................................

  Get a list of all RPM packages installed on system:
rpm -qa

  Looking for a specific package or group of packages? Use grep:
rpm -qa|grep up2date

  Remove an unwanted rpm package from the system:
rpm -e up2date-gnome-2.8.39-1.7.2

  Forcing removal can be done by saying "don't do dependency check"
rpm -e --nodeps packagename

  What's necessary or required for this package:
rpm -qR vim-minimal-6.1-18.8x.1.i386.rpm

  Install a package:
rpm -i vim-minimal-6.1-18.8x.1.i386.rpm

  Install with status and information:
rpm -ihvv --percent vim-minimal-6.1-18.8x.1.i386.rpm

  List files in rpm package when the rpm has not been installed
rpm -qpl vim-minimal-6.1-18.8x.1.i386.rpm

  Rebuild RPM database:
  (solves "rpmdb: unable to join the environment" problem)
rpm --rebuilddb

RPM MANIPULATION
..............................................................................

  All of these apps will convert rpm files to tar.gz files.
rpm2targz, rpm2tgz, rpm2cpio, alien, etc.

  Extract a single file from rpm package without installing entire package
  First use rpm -qpl <packagename>|grep <filename> to determine the path to
  which the file will be installed.  Now use rpm2cpio
rpm2cpio <packagename> | cpio -ivd ./path/<filename>

  The period will create the path and place <filename> within that structure 
  under whatever directory you are currently in.

  example:  
  (find the dovecot init script in dovecot-0.99.14-1.1.el3.rf.i386.rpm)
rpm -qpl dovecot-0.99.14-1.1.el3.rf.i386.rpm  |grep init
  (looks like the path is /etc/rc.d/init.d/dovecot)
rpm2cpio dovecot-0.99.14-1.1.el3.rf.i386.rpm | cpio -ivd ./etc/rc.d/init.d/dovecot
  (created a ./etc/.... inside of the directory I am in: relative to pwd)

  rpm2cpio turns an RPM into a standard CPIO archive that you can extract
  certain files from with the cpio command.
rpm2cpio package | cpio -iv --make-directories full-path

  You may also convert the rpm to a cpio archive
rpm2cpio package > cpio-archive-file

  If you want to remove a list of RPMs without typing each on separately, you
  can use the xargs command with rpm.
rpm -qa | grep xine