Comb through Red Hat hair after initial install

Yes, you can also do this with a kickstart file, but if you want to clean up some unnecessary pieces of a Red Hat install, use the command:

yum remove blue* autofs at* anacron* cups* hid* gpm firstboot* iptables isdn* lvm* md* nfs* oddjob pcsc* portmap rpc* sendmail ypbind winbind* wpa* nscd* samba* smb*

Of course, analyze what you are using the server for and whether you will need any of these packages. But, for a vanilla install, for me this command seems to be useful to clean up some unnecessary packages.

List files in an rpm file

rpm -qlp mysql5-0.rpm

Simple bash for loop

for kernelrpm in kernel-smp-2.6.9-5.EL kernel-smp-2.6.9-34.EL kernel-smp-2.6.9-67.0.1.EL kernel-utils-2.4-14.1.117

do rpm -e $kernelrpm

done