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Date: Mon, 01 Oct 2012 13:24:59 +0200
From: marco atzeri <marco DOT atzeri AT gmail DOT com>
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To: cygwin AT cygwin DOT com
Subject: Re: Check if a package is installed
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On 10/1/2012 1:03 PM, Vincent Rivière wrote:
> Hello.
>
> I would like to know how to reliably test if a Cygwin package is already
> installed (just like setup.exe does).
>
> Currently, I test the existence of /etc/setup/<package>.lst.gz. It works
> perfectly for me, but a user reported to me that that file was missing
> sometimes.
>
> I see there is also package information listed in
> /etc/setup/installed.db. Maybe this information should be considered as
> more reliable?
>

cygcheck -c <package>

It uses the the two information left by setup.exe
  /etc/setup/installed.db
  /etc/setup/<package>.lst.gz

to provide a status.

Regards
Marco


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