mpimsg(1) on Linux
The text db87a248d970, as Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it.
Monitor MPI message buffers under LAM.
Flags it lists
-
-B -
-O -
-c -
-d -
-e -
-gps -
-h -
-m