usage: cadc-tap permission [-h]
                           [--cert CERT | -n | --netrc-file NETRC_FILE | -u USER | -a]
                           [-s SERVICE] [-q | -v]
                           MODE TARGET [GROUPS [GROUPS ...]]

Update access permissions of a table or a schema. Use schema command to display the existing permissions

positional arguments:
  MODE                  permission setting accepted modes:
                        (og|go|o|g)[+-=](rw|wr|r|w)
  TARGET                table or schema name
  GROUPS                name(s) of group(s) to assign read/write permission
                        to. One group per r or w permission.

optional arguments:
  -a, --anon            use the service anonymously
  --cert CERT           location of your X509 certificate to use for
                        authentication (unencrypted, in PEM format)
  -h, --help            show this help message and exit
  -n                    use .netrc in $HOME for authentication
  --netrc-file NETRC_FILE
                        netrc file to use for authentication
  -q, --quiet           run quietly
  -s, --service SERVICE
                        service this command accesses. Both IDs in short form
                        (<service>) or the complete one
                        (ivo://cadc.nrc.ca/<service>) as well as actual URLs
                        to the root of the service (https://someurl/service)
                        are accepted. Default is: ivo://cadc.nrc.ca/youcat
  -u, --user USER       name of user to authenticate. Note: application
                        prompts for the corresponding password!
  -v, --verbose         verbose messages
