Show all Vagrant environments

To see a list of vagrant environments on your machine:

vagrant global-status

This command loads a list from cache. To prune invalid entries, run the command with the --prune flag.

vagrant global-status --prune

Official documentation for the global-status command.

Alternately, if Vagrant uses Virtualbox, you can see all virtual machines running with the virtual box command line tool:

VBoxManage list runningvms