> Date: Fri, 19 Mar 2010 14:48:02 -0700 <mgb-deb...@yosemite.net> wrote:
>
> On Fri March 19 2010 12:55:47 Mike Viau wrote:
> > I was looking for a way to purge or remove all the packages that were
> > installed on a Debian system after the initial (bare bone) minimal system
> > installation. I have searched on Google for "How to reduce a Debian system
> > to a base system" but it seems like the topic of interest was to reduce the
> > memory consumption of the installed system, which is not my consern.
> >
> > In essence I would like to revert my system back to a freshly installed
> > state, without reinstalling. Ultimatly is this possible?
>
> Assuming your bare bones --get-selections file is called bbs:
>
> dpkg --dry-run --purge $(join -v2 <(awk '{if ($2=="install") print $1}' <bbs
> |
> sort) <(dpkg --get-selections | awk '{if ($2=="install") print $1}' | sort))
>
> Remove "--dry-run" at your own peril once you're happy with the proposed
> actions.
>
> You may need to run it a couple or three times but that should do it.
>
> --Mike Bird
>
My output with the suggestion above.
debian:~# dpkg --dry-run --purge $(join -v2 <(awk '{if ($2=="install") print
$1}' < debian-5.04-base-selections | sort) < (dpkg --get-selections | awk '{if
($2=="install") print $1}' | sort))
bash: command substitution: line 1: syntax error near unexpected token `('
bash: command substitution: line 1: `join -v2 <(awk '{if ($2=="install") print
$1}' < debian-5.04-base-selections | sort) < (dpkg --get-selections | awk '{if
($2=="install") print $1}' | sort)'
dpkg: --purge needs at least one package name argument
Type dpkg --help for help about installing and deinstalling packages [*];
Use `dselect' or `aptitude' for user-friendly package management;
Type dpkg -Dhelp for a list of dpkg debug flag values;
Type dpkg --force-help for a list of forcing options;
Type dpkg-deb --help for help about manipulating *.deb files;
Type dpkg --license for copyright license and lack of warranty (GNU GPL) [*].
Options marked [*] produce a lot of output - pipe it through `less' or `more' !
debian:~#
>
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