You can start GUI tool from command line named synaptic, enter:
$ synaptic &
Heading ##Command Line Package Management Tool :
apt-get is the command-line tool for handling packages. It is used for adding / removing / updating packages.
Uninstall / Delete / Remove Package
Just use the following syntax:
Heading ##sudo apt-get remove {package-name}
For example remove package called mplayer, enter:
$ sudo apt-get remove mplayer
Remove package called lighttpd along with all configuration files, enter:
$ sudo apt-get --purge remove lighttpd
To list all installed package, enter:\
dpkg --list
dpkg --list | less
dpkg --list | grep -i 'http'
sudo apt-get --purge autoremove Firefox*
(add * mark at the end of package_Name) – αғsнιη Aug 29 '14 at 09:12