checking installed packages in debian

[Thomas Stivers]

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On Wed, Aug 31, 2005 at 10:02:18 PM -0500, Gregory Nowak wrote:
> Hi all.
> 
> Is there  a way to get an output of packages installed on a debian
> system, without having to arrow around in aptitude? The closest answer
> I found to what I'm looking for is
> 
> apt-cache pkgnames
> 
> , though that seems to give me all the packages in debian, not just
> the ones currently installed on the system. Thanks in advance.

You can use aptitude in command line mode:

aptitude search '~i'

will display installed packages. You will probably want to pipe the
output through less. You can read all about the different kinds of
expressions you can use in /usr/share/doc/aptitude/README. 

- -- 
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan

Thomas Stivers	e-mail: stivers_t at tomass.dyndns.org
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