$ apt-get update
$ apt-get upgrade
			

Smart software update

$ apt-get dist-upgrade			
			

Searching a software package

$ apt-cache search package
			

$ sudo apt-get install package			
			

$ sudo apt-get remove --purge package			
			

$ dpkg-query -W			
			

Description of installed software packages

$ dpkg -l			
			

$ sudo dpkg-reconfigure package