open --version (return code: 0)
open from kbd 1.15.5
open --help (return code: 0)
Usage: open [OPTIONS] -- command
This utility help you to start a program on a new virtual terminal (VT).
Options:
-c, --console=NUM use the given VT number;
-e, --exec execute the command, without forking;
-f, --force force opening a VT without checking;
-l, --login make the command a login shell;
-u, --user figure out the owner of the current VT;
-s, --switch switch to the new VT;
-w, --wait wait for command to complete;
-v, --verbose print a message for each action;
-V, --version print program version and exit;
-h, --help output a brief help message.