Last updated on November 24, 2020 by Dan Nanni
If you are managing software on Debian/Ubuntu using apt-get
package management, there may be cases where you want to remove or upgrade a software package that contains an existing binary file on your system. So given an existing binary file (e.g., /usr/lib/postgresql/8.4/bin/postgres
), how can you find out which package provides the binary file?
This is when apt-file
can help you, which is a command-line utility developed for that very purpose. First, install apt-file
as follows.
$ sudo apt-get install apt-file $ sudo apt-file update
In order to find out which package /usr/lib/postgresql/8.4/bin/postgres
belongs to, do the following.
$ sudo apt-file search /usr/lib/postgresql/8.4/bin/postgres
postgresql-8.4: /usr/lib/postgresql/8.4/bin/postgres
The above output tells you that the binary file comes from a package called postgresql-8.4
.
To remove the found package, as well as its dependencies that were installed along with it but are no longer used by anything else on the system, do the following.
$ sudo apt-get autoremove postgresql-8.4
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