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I'm trying to figure out a way to get a list of the packages that are no longer available in the repositories that I have enabled. This workstation has been through quite a few versions of Ubuntu and has had many 3rd party repositories added and removed. I'd like to get a list of software that I have from these removed repositories, so I can clean it up or add back the appropriate repositories.

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migrated from serverfault.com Jan 24 '12 at 19:43

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3 Answers 3

up vote 10 down vote accepted
aptitude search '~o'

Aptitude has some very powerful searching available. Unfortunately the syntax is a bit unwieldy and you have to dig past the manpage to find the documentation, but its worth it.

apt-show-versions can also be helpful:

apt-show-versions | grep 'No available version'
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1  
see a nice article about obsolete packages here: raphaelhertzog.com/2011/02/07/… –  tictacbum Mar 8 '14 at 11:02

There may be a cleaner way, but off the top of my head you can do

dpkg -l | cut -f 3 -d ' ' > installed
xargs -n 1 --replace=X apt-cache search ^X$ < installed | cut -f 1 -d ' ' > available
diff installed available

Cleanup the first few lines of the installed file: it will have headers.

Bonus if anyone can fix my syntax highlighting...

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if you are going to use the output of dpkg -l to get a list of installed packages, you should limit the results to lines with 'i' in the second column, as dpkg will also list packages which are not installed (perhaps removed but not purged). as an example, altering your first command to be dpkg -l | grep '^.[^i]' | cut -f 3 -d ' ' it would return a list of packages, which are NOT installed. (but once were) –  stew Jan 24 '12 at 19:46
    
also, apt-cache search someinstalledpackage will return something even if the package isn't available from a repo, so I don't believe this will work at all. –  stew Jan 24 '12 at 19:54
1  
@stew I'll leave this up here to see if anybody reaches conclusions, but your answer is definitely far better. +1 to you. –  Jeff Ferland Jan 24 '12 at 19:59

If you have aptitude installed use,

aptitude search '?obsolete'

or its short form

aptitude search '~o'

Here it is a sample output

i A gcc-4.7-base - GCC, the GNU Compiler Collection (base package)
id  libdb4.7     - Berkeley v4.7 Database Libraries [runtime]
i   libudev0     - libudev shared library

The first character of each line indicates the current state of the package. The most common states are:

  • p, meaning that no trace of the package exists on the system,
  • c, meaning that the package was deleted but its configuration files remain on the system,
  • i, meaning that the package is installed, and
  • v, meaning that the package is virtual.

The second character indicates the stored action to be performed on the package, if any, otherwise a blank space is displayed. The most common actions are:

  • i, meaning that the package will be installed,
  • d, meaning that the package will be deleted, and
  • p, meaning that the package and its configuration files will be removed.

If the third character is A, the package was automatically installed.

For a complete list of the possible state and action flags, see the section Accessing Package Information in the aptitude reference guide.

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aptitude search ?obsolete may work in bash, but you should use aptitude search '?obsolete' –  A.B. Jul 1 at 18:28
    
could you add some detail on parsing the output? –  Elder Geek 2 days ago
    
Is '?obsolete' different from '~o'? –  Sean 2 days ago
    
@A.B. The Search patterns reference guide does not mention the use of single quotes, which should be therefore avoided. However it shows the use of the double quotes in case of spaces in the search terms, but this is not the case. –  Fox 2 days ago
    
@Sean No, they are not different. ~o is the short form for ?obsolete indeed. –  Fox 2 days ago

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