Melihat Paket Software Aplikasi yang terinstall di Ubuntu

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While working on the instructions for compiling MonoDevelop from source, I relied heavily on the dpkg and apt-cache commands to tell me what was already installed vs what packages were available in the repository. After completing that article it occurred to me that I should explain how to show what packages are currently installed… so here we are.

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

The full list can be long and unwieldy, so it’s much easier to filter through grep to get results for the exact package you need. For instance, I wanted to see which php packages I had already installed through apt-get:

   dpkg --get-selections | grep php
   libapache2-mod-php5                             install
   php-db                                          install
   php-pear                                        install
   php-sqlite3                                     install
   php5                                            install
   php5-cli                                        install
   php5-common                                     install
   php5-gd                                         install
   php5-memcache                                   install
   php5-mysql                                      install
   php5-sqlite                                     install
   php5-sqlite3                                    install
   php5-xsl                                        install

For extra credit, you can find the locations of the files within a package from the list by using the dpkg -L command, such as:

   dpkg -L php5-gd

Now I can take a look at the gd.ini file and change some settings around…


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