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The command above is some how redundant, because dpkg support wild characters, doing this instead The command above is some how redundant, because dpkg support WikiPedia:Wildcard_character , doing this instead

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This page is about the ways to list the installed packages in a Debian system and how to create a file with this list. This file can be uploaded to the web (i.e. from other computer with Internet connection) to download new packages.

List all packages installed:

And to store in a file:

  • dpkg --list > /backup/installed-software.log

To check the status of all packages on your system:

  • dpkg -l | more

This will show all packages (1 line each) that are in various stages of install (this includes packages that were removed but not purged). To show only the installed:

  • dpkg -l | grep '^i'

to filter through grep to get results for "i"

The command above is some how redundant, because dpkg support Wildcard_character , doing this instead

  • dpkg -l "ii"

You can also use:

You can if you are using Debian Linux use dpkg command to list installed software:

  • dpkg --get-selections

And store the list installed software to a file called /backup/installed-software.log

$ dpkg --get-selections > /backup/installed-software.log

You can also find package information in the next directories (you can use mc or other FileManager to browse them):

  • /var/lib/apt/lists/*
  • /var/lib/dpkg/available: list of available packages.
  • /var/lib/dpkg/status :statuses of available packages. This file contains information about whether a package is marked for removing or not, whether it is installed or not, etc. A package marked reinst-required is broken and requires reinstallation.

Restore installed software

After re-installing base system you can immediately re-install all software.

All you have to do is type following two commands:

  • dpkg --set-selections < /backup/installed-software.log

Now your list is imported use dselect, ["Synaptic"] or other PackageManagement tools to install the package :

  • dselect

Select ‘i‘ for install the software

You can also use “apt-get dselect-upgrade” instead of dselect

All this with a single command:

  • apt-get install `cat installed-software.log` 

See also