HP 3000 Manuals

HP System Dictionary XL Gen. Ref. Vol. 2-Part 4 SDUTIL

MPE Commands 

MPE commands can be issued without leaving SDUTIL. Whenever the prompt
for a command (>) is present, an MPE command can be issued by entering a
colon (:)  followed by the command desired.  SDUTIL passes the command on
to the operating system to be processed.  After the command has been
completed, control is returned and you are prompted (>) to continue.

MPE commands that can be issued from SDUTIL are those which are supported
by the MPE 'COMMAND' intrinsic.  Refer to the MPE Intrinsics Reference
Manual for a list of these commands.

MPE/iX 5.0 Documentation