You need to be very careful while performing this step. With yum groups, you can easily install, update and remove a set of packages. Suppose you want to remove all the Editors from your RHEL machine, you can simply use the option groupremove of yum.
NOTE: You must ensure first that you are aware of the packages in a group. So first ensure that you are fully aware of all the packages that will be removed.
# yum groupinfo "Editors" Loaded plugins: langpacks, presto, refresh-packagekit Adding en_US to language list Setting up Group Process Group: Editors Description: Sometimes called text editors, these are programs that allow you to create and edit text files. This includes Emacs and Vi. Default Packages: vim-enhanced Optional Packages: cssed emacs emacs-auctex emacs-bbdb emacs-ess emacs-muse emacs-vm geany gobby jed joe leafpad nedit pida poedit psgml scite scribes scribes-templates vim-X11 xemacs xemacs-ess xemacs-muse xemacs-packages-extra xmlcopyeditor zile
Now that you are aware of the list of packages, you can proceed with groupremove.
# yum groupremove "Editors" Loaded plugins: langpacks, presto, refresh-packagekit Adding en_US to language list Setting up Group Process Resolving Dependencies --> Running transaction check ---> Package emacs.i686 1:23.2-7.fc14 set to be erased ---> Package vim-enhanced.i686 2:7.3.056-1.fc14 set to be erased ---> Package xemacs.i686 0:21.5.29-14.fc14 set to be erased --> Processing Dependency: xemacs(bin) >= 21.5.29 for package: xemacs-packages-base-20100727-1.fc14.noarch --> Processing Dependency: xemacs(bin) = 21.5.29-14.fc14 for package: xemacs-common-21.5.29-14.fc14.i686 --> Running transaction check ---> Package xemacs-common.i686 0:21.5.29-14.fc14 set to be erased ---> Package xemacs-packages-base.noarch 0:20100727-1.fc14 set to be erased --> Finished Dependency Resolution Remove 5 Package(s) Installed size: 37 M Is this ok [y/N]: n
If you press y, you will be able to remove all the packages. But as you see that we pressed n since we don’t wish to remove vim and emacs from our machines