MacOS security update mechanism Ubuntu has a command line mechanism for security updates:
sudo apt update

Does MacOS have a similar command line mechanism to provide updates without a release?
Update:
The scope is limited to the the operating system and I would like to understand what options are available the user has to task an update check &amp; install. I am not aware of any pull that can be triggered from the command line. I am aware (and use) the home-brew package manager, however, I doubt it is intended for this purpose. I do keep Catalina up to date with Apple releases.
softwareupdate

Software Update checks for new and updated versions of your software based on information about your computer and current software.

See softwareupdate -h and man softwareupdate for the equivalent functionality on macOS.
To install the recommended updates, issue the command:
sudo softwareupdate --install --recommended