List installed packages on CentOS

The command to list installed packages on CentOS is:

yum list installed

The result will be something like this:

Installed Packages
audit-libs.x86_64        
basesystem.noarch        
bash.x86_64              
binutils.x86_64          
bzip2-libs.x86_64        
ca-certificates.noarch   
....         

To search for a specific package the easiest way is:

yum list installed | grep packageName