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I would like to list all the installed packages, with specific version numbers on my system. I checked out dpkg --get-selections (How to list all installed packages?) but it doesn't show me what I need. For example:

$ dpkg --get-selections apache2
apache2                                         install

shows that apache2 is installed, however not the version. I recently did a apt-get upgrade so apache2.2.22-1 should be version installed (http://packages.ubuntu.com/precise-updates/apache2.2-common), but how can I show that?


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2 Answers 2

Use dpkg -l instead.


dpkg -l | grep '^ii' | grep skype

Outputs this:

alaa@aa-lu:~$ dpkg -l | grep '^ii' | grep skype
ii    skype       i386     client for Skype VOIP...

If you only want to extract the name and version, you can do this:

dpkg -l | grep '^ii' | grep skype | awk '{print $2 "\t" $3}'

Which will only print the second and third column from the above output, like this:

alaa@aa-lu:~$ dpkg -l | grep '^ii' | grep skype | awk '{print $2 "\t" $3}'

Of course, if you want to list all of your installed packages with their versions, and not only Skype, then just remove the grep skype part to make the command like this:

dpkg -l | grep '^ii' | awk '{print $2 "\t" $3}'
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dpkg-query --show apache2

to get the version number for package apache2 and

dpkg-query --show 

to get the version numbers for all installed packages

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