Yum Commands

To Install:
yum install package-name
example: "yum install thunderbird-i386" to install the thunderbird-i386 package

To search for a package:
yum list partial-pkg-name
example: "yum list perl*"  would list all packages starting with "perl"
"yum list * | grep perl" would this list all perl related packages??

To list what's already installed:
rpm -qa
   or
yum list installed
example: see if gftp is installed: "rpm -qa | grep gftp"  or  "yum list installed gftp"
example: see if any packages starting with "perl" are installed: "yum list installed perl*"

To update yum
"yum update"

To remove a package
yum remove package-name
example: to remove the "goober" package: "yum remove goober"