Clears the yum cache

yum clean all

Cache all your Debain installation DVD/CDs

Put the first DVD in the drive and run this command

apt-cdrom add

Do this for all your DVDs. After its over run this command

apt-get upgrade

To install a pacakge this command can be used

apt-get install <Package Name>

[tags]debian,install,cd,dvd,cache,apt[/tags]