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## page was renamed from Packaging/Listing Installed Packages
## page was renamed from ListInstalledPackages
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||<tablestyle="width: 100%;" style="border: 0px hidden">~-[[DebianWiki/EditorGuide#translation|Translation(s)]]: English - [[fr/ListInstalledPackages|Français]] - [[it/ListInstalledPackages|Italiano]] - [[ja/ListInstalledPackages|日本語(Nihongo)]]-~||<style="text-align: right;border: 0px hidden"> (!) [[/Discussion|Discussion]]||
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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:

 * DebPkg:dpkg --list
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 | DebPkg:grep '^i'
to filter through grep to get results for "i"

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

 * dpkg -l "ii"
You can also use:

 * DebPkg:apt-cache pkgnames
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 DebPkg:mc or other FileManager to browse them):

 * /var/lib/apt/lists/*
 * /var/lib/dpkg/status
 * /var/lib/dpkg/available
== 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 [[AptCLI#List_installed_packages]]
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 * [http://manpages.debian.net/man/1/dpkg-query dpkg-query]
 * DebPkg:debfoster - If dependency changes, debfoster ask if you want to remove the old package.
 * [http://www.howtogeek.com/howto/linux/show-the-list-of-installed-packages-on-ubuntu-or-debian/ Show the List of Installed Packages on Debian].
 * [http://linux.byexamples.com/archives/161/how-to-check-what-have-installed-in-debianubuntu/ Linux by examples]
 * WikiPedia:JIG (Wikipedia article about JIG) and DebPkg:JIG (Package JIG)

* [[DebianMan:1/dpkg-query|dpkg-query(1)]] manpage
 * DebianPkg:debfoster - If dependency changes, debfoster ask if you want to remove the old package.
 * [[http://www.howtogeek.com/howto/linux/show-the-list-of-installed-packages-on-ubuntu-or-debian/|Show the List of Installed Packages on Debian]].
 * [[http://linux.byexamples.com/archives/161/how-to-check-what-have-installed-in-debianubuntu/|Linux by examples]]
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Translation(s): English - Français - Italiano - 日本語(Nihongo)

(!) ?Discussion

See AptCLI#List_installed_packages

See also