YUM packages tool (Fedora, RedHat and alike)

# yum -y install [package]
download and install a rpm package [man]

# yum localinstall [package.rpm]
That will install an RPM, and try to resolve all the dependencies for you using your repositories. [man]

# yum -y update
update all rpm packages installed on the system [man]

# yum update [package]
upgrade a rpm package [man]

# yum remove [package]
remove a rpm package [man]

# yum list
list all packages installed on the system [man]

# yum search [package]
find a package on rpm repository [man]

# yum clean [package]
clean up rpm cache erasing downloaded packages [man]

# yum clean headers
remove all files headers that the system uses to resolve dependency [man]

# yum clean all
remove from the cache packages and headers files [man]