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Well, I like to mark /usr/bin/ as executable using following command:

chmod +x /usr/bin/

I want the above command to be executed at the end of installation of the Debian package.

Is there a painless way to inject the command into the deb?

Thanks for looking!

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up vote 5 down vote accepted

use dpkg-deb to extract the .deb file

Create a temp dir

mkdir temp

Extract the .deb file to temp directory

dpkg-deb -x file.deb temp/
cd temp/
dpkg-deb -e file.deb

Now change the DEBAIN/postinst file. This script be called right after the installation of package. So add the code which is needed for you.

Rebuild the package

dpkg-deb -b . file.deb 


If you don't want to edit .deb file. Create a simple shell script to call the .deb and the command you want to run.

dpkg -i file.deb

and run it as ./

Hope this helps

share|improve this answer
Clean answer, thanks a lot! – Naveen Oct 16 '12 at 11:14
@Naveen glad that helped. – devav2 Oct 16 '12 at 11:27

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