vis-open takes a list of filenames and directories on the command-line and displays them in a menu for
the user to select one. If the user selects a directory (including ..), the directory contents are
displayed as a fresh menu. Once the user has selected a filename, its absolute path is printed to
standard output.
vis-open uses vis-menu(1) as its user-interface, so see that page for more details.
-pprompt
Display prompt before the list of items. This is passed straight through to vis-menu(1).
-f Normally, if vis-open is provided with a single filename or directory argument, it will
automatically select it (printing the filename to standard output, or presenting a new menu with
the contents of the directory). If -f is provided, vis-open will always present the arguments it's
given, even if there's only one.
-- If this token is encountered before the first non-option argument, all following arguments will be
treated as menu-items, even if they would otherwise be valid command-line options.
If encountered after the first non-option argument, or after a previous instance of -- it is
treated as a menu-item.
files
File and directory names to be presented to the user. If a name does not exist on the filesystem
and the user selects it, it is treated as a file.
-h If present, vis-open prints a usage summary and exits, ignoring any other flag and arguments.