User`s guide

PROTECT
RT–11 prompts you to mount the system volume until you type Y. RT–11 then
displays the monitor prompt.
The following example protects the file FILE.MAC on an RL02 disk:
.PROTECT/WAIT DL0:FILE.MAC
Mount input volume in DL0:; Continue? Y
Mount system volume in DL0:; Continue? Y
198 RT–11 Command Descriptions