vrms:tldr:2338e
The "vrms" command is a command-line tool in Linux-based operating systems, particularly Debian-based distributions such as Ubuntu. "vrms" stands for "Virtual Richard M. Stallman" and is a wordplay on the name of the founder of the Free Software Foundation, Richard Stallman.
The purpose of the "vrms" command is to display a list of installed packages on the system that are not considered "free" or open-source software according to the Debian Free Software Guidelines (DFSG). It scans the package database and identifies non-free software that may be installed on the system.
The Debian Free Software Guidelines define specific criteria for software to be considered free, which includes allowing modification, unrestricted distribution, and providing source code. The "vrms" command helps users maintain a system that aligns with the principles of free and open-source software.
By running the "vrms" command, users can see a list of packages that do not adhere to these guidelines, allowing them to make informed decisions about the software running on their system. It can be useful for users who prioritize using only free software or for those who want to be aware of any non-free software on their system.