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Annotation of 43BSDReno/old/man/newtty.4, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1980 Regents of the University of California.
        !             2: .\" All rights reserved.  The Berkeley software License Agreement
        !             3: .\" specifies the terms and conditions for redistribution.
        !             4: .\"
        !             5: .\"    @(#)newtty.4    4.1 (Berkeley) 5/15/85
        !             6: .\"
        !             7: .TH NEWTTY 4 4/1/81
        !             8: .UC 4
        !             9: .SH NAME
        !            10: newtty \- summary of the ``new'' tty driver
        !            11: .SH USAGE
        !            12: .B "stty new"
        !            13: .PP
        !            14: .B "stty new crt"
        !            15: .SH DESCRIPTION
        !            16: This is a summary of the new tty driver, described completely, with the
        !            17: old terminal driver, in
        !            18: .IR tty (4).
        !            19: The new driver is largely compatible with the old but provides additional
        !            20: functionality for job control.
        !            21: .LP
        !            22: .B "CRTs and printing terminals."
        !            23: .LP
        !            24: The new terminal driver acts differently on CRTs and on printing terminals.
        !            25: On CRTs at speeds of 1200 baud or greater it normally erases input characters
        !            26: physically with backspace-space-backspace when they are erased logically;
        !            27: at speed under 1200 baud this is often unreasonably slow, so the cursor
        !            28: is normally merely moved to the left.  This is the behavior when you say
        !            29: \*(lqstty new crt\*(rq; to have the tty driver always erase the characters say
        !            30: \*(lqstty new crt crterase crtkill\*(rq,
        !            31: to have the characters remain even at 1200
        !            32: baud or greater say \*(lqstty new crt \-crterase \-crtkill\*(rq.
        !            33: .LP
        !            34: On printing terminals the command \*(lqstty new prterase\*(rq should be given.
        !            35: Logically erased characters are then echoed printed backwards
        !            36: between a `\e' and an `/' character.
        !            37: .LP
        !            38: Other terminal modes are possible, but less commonly used; see
        !            39: .IR tty (4)
        !            40: and
        !            41: .IR stty (1)
        !            42: for details.
        !            43: .LP
        !            44: .B "Input editing and output control."
        !            45: .PP
        !            46: When preparing input the character #
        !            47: (normally changed to ^H using
        !            48: .IR stty (1))
        !            49: erases the last input character,
        !            50: \&^W the last input word, and the character @
        !            51: (often changed to ^U)
        !            52: erases the entire current input
        !            53: line.  A ^R character causes the pending input to be retyped.
        !            54: Lines are terminated by a return or a newline; a ^D at the beginning
        !            55: of a line generates an end-of-file.
        !            56: .PP
        !            57: Control characters echo as ^x when typed, for some x; the delete character
        !            58: is represented as ^?.
        !            59: .PP
        !            60: The character ^V may be typed before
        !            61: .I any
        !            62: character so that it may be entered without its special effect.
        !            63: For backwards compatibility with the old tty driver the character `\e'
        !            64: prevents the special meaning of the character and line erase characters,
        !            65: much as ^V does.
        !            66: .LP
        !            67: Output is suspended when a ^S character is typed and resumed when a ^Q
        !            68: character is type.  Output is discarded after a ^O character is typed
        !            69: until another ^O is type, more input arrives, or the condition is cleared
        !            70: by a program (such as the shell just before it prints a prompt.)
        !            71: .PP
        !            72: .B "Signals."
        !            73: .PP
        !            74: A non-interactive program is interrupted by a ^? (delete); this character
        !            75: is often reset to ^C using
        !            76: .IR stty (1).
        !            77: A quit ^\e character causes programs to terminate like
        !            78: ^? does, but also causes a \fIcore\fR image file to be created which
        !            79: can then be examined with a debugger.  This is often used to stop runaway
        !            80: processes.
        !            81: Interactive programs often catch interrupts and return to their command
        !            82: loop; only the most well debugged programs catch quits.
        !            83: .PP
        !            84: Programs may be stopped by hitting ^Z, which returns control to the shell.
        !            85: They may then be resumed using the job control mechanisms of the shell,
        !            86: i.e. the
        !            87: .I fg
        !            88: (foreground) command.
        !            89: The character ^Y is like ^Z but takes effect when read rather then when
        !            90: typed; it is much less frequently used.
        !            91: .PP
        !            92: See
        !            93: .IR tty (4)
        !            94: for a more complete description of the new terminal driver.
        !            95: .SH "SEE ALSO"
        !            96: csh(1), newcsh(1), stty(1), tty(4)

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