apt-mark
Utility to change the status of installed packages.
More information: https://manned.org/apt-mark.8.
- 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