Ubuntu

Small tips to hopefully make your life easier. Anything in a code block should be run on the command line.

Is package 'x' installed?

$ dpkg -l | grep gnome-terminal
ii  gnome-terminal       3.6.2-0ubuntu1     amd64     GNOME terminal emulator application
ii  gnome-terminal-data  3.6.2-0ubuntu1     all       Data files for the GNOME terminal emulator

As we can see from the above output, the package is installed.

$ dpkg -l | grep foobarbaz
$

No output in this case means that grep could not find package or description that matched your search query.