Sets the mode of transmission.

    The mode of transmission can be either character mode or line
    mode. Character mode is the default. Use character mode when you
    run a character-processing text editor on the remote host. With
    character mode, your local system sends data a character at a
    time to the remote host with which you have a connected session,
    and the remote host echoes the characters back for display on
    your local system. (Sometimes several characters may be sent in
    a burst for performance optimization, in which case the remote
    server usually replies with bursts of characters, but not a line
    at a time.)

    To use line mode, the remote host server must support line mode.
    The local host echoes characters. Line mode allows the following:

    o  Signal trapping (such as for application programs on remote
       UNIX hosts that sense traps or special events)

    o  Local character editing

    o  Tab expansion (where a tab is more than simply the TAB
       character)

    This command overrides the ENABLE LOCAL_CHARS command.

    Before you enter this command, establish a remote connection.

    DCL Format

      SET MODE  {CHAR | LINE}

    UNIX Format

      mode  mode