HP SSL for OpenVMS includes three pseudocommands that function
like command-line help. When you enter one of these pseudocommands
at the OpenSSL prompt, SSL displays a list (one entry per line)
of names of all the standard commands, message digest commands,
or cipher commands, that are available in the command line interface.
To use these commands, you must have previously run SYS$STARTUP:SSL$STARTUP.COM and
SSL$COM:SSL$UTILS.COM.
To obtain a list of all of the commands available, enter the
following:
$ openssl ?
SSL$UTILS.COM sets up foreign commands to provide command-line
accesss to the standard, message digest, and cipher commands. You
can also display the UNIX manpage documentation for each command
by entering the following:
$ openssl command-name ?
where command-name is the name of an
OpenSSL command such as asn1parse.
HP Open Source Security for OpenVMS Volume 2:... 
OpenSSL Command Line Interface
