usage: vlock [-h] [--certfile CERTFILE] [--token TOKEN] [--version] [-d]
             [--vos-debug] [-v] [-w] [--lock | --unlock]
             node

Places/Removes a write lock on a VOSpace Node or reports lock
status if no action requested.

positional arguments:
  node                 node to request / view lock on. (eg.
                       vos:RootNode/File.txt

optional arguments:
  -h, --help           show this help message and exit
  --certfile CERTFILE  filename of your CADC X509 authentication certificate
  --token TOKEN        authentication token string (alternative to certfile)
  --version            show program's version number and exit
  -d, --debug          print on command debug messages.
  --vos-debug          Print on vos debug messages.
  -v, --verbose        print verbose messages
  -w, --warning        print warning messages only
  --lock               Lock the node
  --unlock             unLock the node

Default service settings in ~/.config/vos/vos-config.
