Yum

External

• http://en.wikipedia.org/wiki/Yellowdog_Updater,_Modified
• http://prefetch.net/articles/yum.html

Internal

• Linux Commands

Recipes

Find Packages that Might Contain a Certain Command

yum provides sealert

Find Whether a Package is Installed

yum list installed | grep <package-name>

Example of positive hit:

[root@ns ~]# yum list installed | grep httpd
httpd.x86_64                     2.4.6-40.el7                @rhel-7-server-rpms
httpd-tools.x86_64               2.4.6-40.el7                @rhel-7-server-rpms

Update All Packages

yum -y update

Uninstall a Package

yum remove <package-name>