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====== Ubuntu - Packages - Purge removed, unpurged packages ======

When a package is removed, but not purged, the configuration files are usually not removed.

  * But at some stage there may be a need to remove this configuration data too.

----

===== Obtain a list of removed, unpurged packages =====

<code bash>
dpkg --list | grep ^rc
</code>

returns:

<code bash>
rc  linux-image-5.11.0-25-generic              5.11.0-25.27~20.04.1                       amd64        Signed kernel image generic
rc  linux-image-5.11.0-27-generic              5.11.0-27.29~20.04.1                       amd64        Signed kernel image generic
...
</code>

<WRAP info>
**NOTE:**  The **^rc** pattern means that only lines beginning with **rc** should be output.

  * The **r** part means that the package was removed.
  * The **c** part means that the config files remain.
</WRAP>

----

===== Use AWK to get a listing of just the package names =====

<code bash>
dpkg --list | grep ^rc | awk '{ print $2; }'
</code>

returns:

<code bash>
linux-image-5.11.0-25-generic
linux-image-5.11.0-27-generic
...
</code>

----

===== Purge the removed, unpurged packages =====

<code bash>
sudo apt purge `dpkg --list | grep ^rc | awk '{ print $2; }'`
</code>

<WRAP info>
**NOTE:**  Some warnings may be seen stating that specific directories were not removed.

  * These directories can be checked if they are empty and then removed manually if required.

</WRAP>

----