DIGITAL RESEARCH(r) CP/M Plus TM (CP/M Version 3) Operating ...

The SET Command CP/M 3 User's Guide
Additional SET Examples
Examples: A>SET *.COM[SYS,RO,PASS=123,PROT=READ]
The preceding setting gives the most protection for all the COM files on
drive A. With the password protection mode set to READ, you cannot
even read one of the COM files without entering the password 123,
unless the default password has been set to 123. Even if the correct
password is entered, you still cannot write to the file because the file is
Read-Only.
A>SET *.COM [RW, PROTECT=NONE,DIR]
The preceding command reverses the protection and access attributes of
the COM files affected by the previous example. After executing the
preceding command, there is no password protection, the files of type
COM can be read from or written to, and are set to DIR files.
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