VMS Help TCPIP Services, TELNET, Command Procedures  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    You can create a command procedure containing the DCL DEFINE and
    TELNET (or TN3270) commands.

    You can create initialization command files to customize your
    TELNET/TN3270 sessions with SET, ENABLE, and DISABLE commands.
    These command files:

    o  Are optional. They eliminate the need to issue individual
       TELNET commands.

    o  Have the following requirements:

       -  Location: Your login directory

       -  Name: TELNETINIT.INI

       -  Format: one command per line

    o  Run automatically when you invoke TELNET or TN3270.

    o  You can specify the logical name, TELNETINIT, to point to an
       initialization file.

1 - Example

    The following example shows a TELNET initialization command
    procedure.

    ! This file, TELNETINIT.INI, sets my TELNET parameters
    ! the way I like them.
    !
    DISABLE AUTOFLUSH
    ENABLE BINARY
    ENABLE DEBUG
    SET DEVICE /TERMINAL=VT300
    SET ESCAPE "^p"