0install --version (return code: 0)
0install (zero-install) 2.12 Copyright (C) 2016 Thomas Leonard This program comes with ABSOLUTELY NO WARRANTY, to the extent permitted by law. You may redistribute copies of this program under the terms of the GNU Lesser General Public License. For more information about these matters, see the file named COPYING.
0install -h (return code: 0)
Usage: 0install COMMAND [OPTIONS] Try --help with one of these: 0install add 0install select 0install show 0install download 0install run 0install update 0install whatchanged 0install destroy 0install config 0install import 0install list 0install search 0install add-feed 0install remove-feed 0install list-feeds 0install man 0install digest 0install store 0install slave Options: -V, --version display version information -c, --console never use GUI --dry-run just print what would be executed -g, --gui show graphical policy editor -h, --help show this help message and exit -v, --verbose more verbose output --with-store=DIR add an implementation cache