Which command will show what files in a Puppet Forge module have been modified since installation?

The command that shows which files in a Puppet Forge module have been modified since installation is indeed the one that highlights changes made to the files. When you use the command to check for changes in a module, it compares the current state of the files against the state of the files at the time of installation, effectively giving you a list of modifications. This is essential for ensuring that your configurations remain consistent and that any alterations made after the initial installation are tracked.

The other commands serve different purposes: one provides information about the status and available modules, while another checks the integrity or validity of the module but does not list which specific files have been changed. Knowing the difference between these commands is crucial for effective Puppet management and troubleshooting.