vnstatd --version (return code: 0)
vnStat daemon 1.15 by Teemu Toivola <tst at iki dot fi>
vnstatd --help (return code: 0)
vnStat daemon 1.15 by Teemu Toivola <tst at iki dot fi>
-d, --daemon fork process to background
-n, --nodaemon stay in foreground attached to the terminal
-s, --sync sync interface counters on first update
-D, --debug show additional debug and disable daemon
-?, --help show this help
-v, --version show version
-p, --pidfile select used pid file
-u, --user set daemon process user
-g, --group set daemon process group
--config select used config file
--noadd don't add found interfaces if no dbs are found
--alwaysadd always add new interfaces even when some dbs exist
See also "man vnstatd".