Tag Archives: Packages

Show the List of Installed Packages on Ubuntu or Debian – How-To Geek

Show the List of Installed Packages on Ubuntu or Debian

The command we need to use is dpkg –get-selections, which will give us a list of all the currently installed packages.

$ dpkg --get-selections
adduser                                         install
alsa-base                                       install
alsa-utils                                      install
apache2                                         install
apache2-mpm-prefork                             install
apache2-utils                                   install
apache2.2-common                                install
apt                                             install
apt-utils                                       install

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CheckInstall keeps track of all files installed by a “make install” or equivalent, creates a Slackware, RPM, or Debian package with those files, and adds it to the installed packages database, allowing for easy package removal or distribution.

Use CheckInstall instead of just running “sudo make install”, as that will likely put files all over the filesystem, with no easy way of removing them if things go wrong. If in the future you try to install a package that contains the same file as the software you are compiling, you will receive errors and the software you compiled may stop working.

(In fact, checkinstall can keep track of files modified by any command line, not just a “make install”, so you can use it for any type of installation task outside of apt, and it will keep track of the installation in the package manager.)

CheckInstall is not designed to produce packages suitable for distribution. Do not use it to produce packages intended for the Ubuntu archive or PPAs. Instead, follow the Packaging Guide.

From the checkinstall README: “The Debian support in CheckInstall is still new, so handle it with care. It has been reported to work OK in some Debian systems and it certainly works OK in my Slackware development system with dpkg installed. Your mileage may vary.”

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