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Ubuntu Commands FAQ

In this article, you can find some of the most used Ubuntu server commands.

If you need help with any of these commands, please post in the comments.

How to list all installed packages on Ubuntu?

If you are using Ubuntu 14.04 or above, you can use this command

apt list --installed

How to unzip a zip file on Ubuntu?

First, install unzip

apt-get install unzip

Then use this command

unzip file.zip -d destination_folder

How to remove a PPA on Ubuntu?

add-apt-repository --remove ppa:PPA_name/ppa

To also remove the applications that were required by this PPA we need to do some more steps.

First install ppa-purge

apt-get install ppa-purge

Then run this command to remove the packages provided by the PPA

ppa-purge ppa:PPA_name/ppa

To remove packages from the official repository use this command

apt-get purge package_name

How to install a .deb file on Ubuntu?

dpkg -i DEB_PACKAG

How to remove a package on Ubuntu?

dpkg -r DEB_PACKAG

How to reconfigure a package on Ubuntu?

dpkg-reconfigure DEB_PACKAG

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