apt-mark

Utility to change the status of installed packages. More information: https://manpages.debian.org/latest/apt/apt-mark.8.html.

• Mark a package as automatically installed:
  sudo apt-mark auto {{package}}
• Hold a package at its current version and prevent updates to it:
  sudo apt-mark hold {{package}}
• Allow a package to be updated again:
  sudo apt-mark unhold {{package}}
• Show manually installed packages:
  apt-mark showmanual
• Show held packages that aren't being updated:
  apt-mark showhold