dpkg
dpkg
To list all packages installed on the system, from a terminal prompt enter:
- dpkg -l
Depending on the amount of packages on your system, this can generate a large amount of output. Pipe the output through grep to see if a specific package is installed:
- dpkg -l | grep apache2
To list the files installed by a package, in this case the ufw package, enter:
- dpkg -L ufw
If you are not sure which package installed a file, dpkg -S may be able to tell you. For example:
- dpkg -S /etc/host.conf
- base-files: /etc/host.conf
The output shows that the /etc/host.conf belongs to the base-files package.
Many files are automatically generated during the package install process, and even though they are on the filesystem dpkg -S may not know which package they belong to. |
You can install a local .deb file by entering:
- sudo dpkg -i zip_3.0-4_i386.deb
Uninstalling a package can be accomplished by:
- sudo dpkg -r zip
Uninstalling packages using dpkg, in most cases, is NOT recommended. It is better to use a package manager that handles dependencies, to ensure that the system is in a consistent state. For example using dpkg -r you can remove the zip package, but any packages that depend on it will still be installed and may no longer function correctly. |
For more dpkg options see the man page: man dpkg.