yum remove -y (specific package name)
yum is a package manager in several Linux distributions, such as Yellow Dog Linux, Fedora, and Red Hat. It has more than one function,but is primarily used to install and remove packages, and control downloading them from a repository.
Yum is a command-line package manager commonly used in RPM-based distros. It uses the RPM file format for its packages. As the term 'package manager' suggest, yum can do things like install and remove packages from your system. Even though it is a command-line tool, there are programs which provide a GUI interface for yum, such as yumex (Yum Extender).
Aptitude is the command used in debian based systems to manage (install, query, remove) packages (aka software).
In Linux the chmod command is used to set file permissions.
"rd" is a command which is "Remove directory" and the full form of the command would be "rmdir" depending on the OS used. It's commonly associated with UNIX or Linux based OS's.
vi
date
OpenOffice and LibreOffice are both full office suites used in Linux distributions.
The 'man' or the 'info' command have documentation about utilities and commands in the system.
$
NIS
cd ls