There are five flags for this command:

• --base [INSERT VALUE]: Takes a parameter of the name of a virtual machine in VirtualBox to package as a base box. This flag only works if you are using the VirtualBox provisioner.
• --output [INSERT VALUE]: Takes a parameter to name the output file.
• --include [INSERT VALUE, INSERT VALUE]: Takes comma-separated parameters to include additional files in this packaging process.
• --vagrantfile [INSERT VALUE]: Takes a parameter of the Vagrantfile you wish to package into this box.
• -h/--help: Prints the help screen for this command.

An example is the vagrant package --help command.