gfhost(1) on Linux
The text bddfc489fd2d, as Debian 10 (Buster), Debian 9 (Stretch) shipped it.
Gfarm host maintenance command
Flags it lists
-
-D -
-L -
-P -
-U -
-a -
-i -
-j -
-n -
-p -
-r -
-u -
-v