How do I update my installed deb package?
Suppose you've installed a .deb package using apt. In that case, it will be managed like any other package from a repository, and you can upgrade it using sudo apt upgrade when updates are available. Where can I find .deb files for Ubuntu?
How to upgrade a Debian package?
To update the package index, simply press the u key. To upgrade packages, first update the package index as detailed above, and then press the U key to mark all packages with updates. Now press g , which will present you with a summary of package actions. Press g again to begin the download and installation.
How do I update a downloaded package in Ubuntu?
sudo apt-get update and sudo apt-get upgrade are two commands you can use to keep all of your packages up to date in Debian or a Debian-based Linux distribution. They're common commands for Linux admins and people doing DevOps, but are handy to know even if you don't use the command line often.