REDHAT PACKAGE MANAGER

rpm
-i install
-h human readable format
-v verbose mode
-e erase
-U Upgrade
-F freshen
--force install by force
--nodeps no dependencies
--aid all dependencies
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-q (query)
-a all installed packages
-l list
-i information
-p package
-f file
-R requires
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Examples:
rpm -qa firefox
rpm -qi firefox

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YUM - Yellowdog Updater Modified
 Syntax: yum [options] package1 package2 package*
install
remove
update
localinstall
groupinstall
clean all
Example:
yum install xen* kernel-xen virt-manager