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1.1     ! root        1: .TH DMDVERSION 1 "630 MTG"
        !             2: .SH NAME
        !             3: dmdversion \- inquire terminal/host software version
        !             4: .SH SYNOPSIS
        !             5: .B dmdversion 
        !             6: [
        !             7: .B \-ehlst
        !             8: ]
        !             9: .SH DESCRIPTION
        !            10: The 
        !            11: .I dmdversion
        !            12: utility displays the version numbers of the 630 MTG terminal and host software.
        !            13: The terminal version number is the equivalent to the ASCII
        !            14: string which contains three fields (f1;f2;f3) defined as
        !            15: follows:
        !            16: .TP 1i
        !            17: .B f1
        !            18: identifies the 630 MTG as a windowing terminal
        !            19: .TP
        !            20: .B f2
        !            21: identifies the terminal as a 630 MTG
        !            22: .TP
        !            23: .B f3
        !            24: identifies the firmware release
        !            25: .LP
        !            26: .PP
        !            27: Host software version is read from the file $DMD/VERSION.
        !            28: .PP
        !            29: The \f3\-t\f1 option is used to display the terminal version number.
        !            30: The \f3\-h\f1 option is used to display the host software version
        !            31: number. The default action is to display both terminal and
        !            32: host software version numbers.
        !            33: .PP
        !            34: In the \fBlayers\fR environment, terminal version is found through an 
        !            35: \fIioctl(2)\fR call to the
        !            36: xt device driver. In non-layers, or if the \fB-e\fR flag is specified, the
        !            37: terminal version is found through the Request Terminal Type escape sequence \fBESC[c\fR.
        !            38: .PP
        !            39: The \fB-l\fR option can be used to inquire if Local Area
        !            40: Network (LAN) Encoding is set for the terminal
        !            41: through terminal setup. This is found through the Request Encoding escape
        !            42: sequence \fBESC[F\fR. This option excludes the \fB-e\fR option and does not
        !            43: inquire the terminal version number.
        !            44: .PP
        !            45: When the \f3\-s\f1 flag is present, no output is printed but
        !            46: an exit value is returned as follows. If the \f3\-t\f1 or
        !            47: \f3\-e\f1 options are present, the decimal ascii value of the
        !            48: last digit of the terminal's version is returned. If the
        !            49: \f3\-l\f1 option is present, 1 is returned if LAN encoding is
        !            50: enabled; 0 otherwise. The \f3\-l\f1 option will overide the
        !            51: \f3\-t\f1 or \f3\-e\f1 options. In all other cases, 255 (-1) is
        !            52: returned.
        !            53: .SS EXAMPLE
        !            54: The following example can be used to determine if a 630 MTG or
        !            55: some other windowing terminal (such as a 5620) is being used.
        !            56: .RS 6
        !            57: .nf
        !            58: .ft CM
        !            59: case `dmdversion -t` in
        !            60:    *'8;8'*)
        !            61:         echo I am a 630
        !            62:         ;;
        !            63:    *'8;7'*)
        !            64:         echo I am a 5620
        !            65:         ;;
        !            66:    *)
        !            67:         echo Unknown terminal type
        !            68:         ;;
        !            69: esac
        !            70: .fi
        !            71: .ft R 
        !            72: .RE
        !            73: .SH FILES
        !            74: .TP 22
        !            75: $DMD/VERSION
        !            76: the host version
        !            77: .SH SEE ALSO
        !            78: version(3R).
        !            79: .br
        !            80: ioctl(2) in the \f2UNIX System V Programmer's Reference Manual\f1.
        !            81: .br
        !            82: layers(1) in the UNIX System V Release 3 User's Reference
        !            83: Manual.
        !            84: .br
        !            85: layers(1) in the 5620 Dot-Mapped Display Reference
        !            86: Manual.
        !            87: .br
        !            88: \f2630 MTG Terminal User's Guide\f1.
        !            89: 
        !            90: .SH DIAGNOSTICS
        !            91: The 
        !            92: .B -e
        !            93: and
        !            94: .B -l
        !            95: flags only work if the window connected to the standard output is
        !            96: running the default 630 MTG terminal emulator or any other emulator that
        !            97: supports the described escape sequences.
        !            98: 
        !            99: 

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