Display the fully qualified DNS hostname of the local system:
.----------------------.
V .- - c ------------. |
>>-hostname--+---+------------------+-+-+----------------------><
| | (1) | |
| +- - c ------------+ |
| | (1) | |
| +- - g ------------+ |
| | (1) | |
| +- - r ------------+ |
| +- - s ------------+ |
| +- - p --stackname-+ |
| '- - d ------------' |
+- - h --------------------+
'- - ? --------------------'
Notes:
- Only one of the -c, -g, and -r parameters can
be specified.