NAME
    stty - change and print terminal line settings

SYNOPSIS
    stty [-F DEVICE] [--file=DEVICE] [SETTING]...
    stty [-F DEVICE] [--file=DEVICE] [-a|--all]
    stty [-F DEVICE] [--file=DEVICE] [-g|--save]

DESCRIPTION
    Print or change terminal characteristics.

    -a, --all
    print all current settings in human-readable form

    -g, --save
    print all current settings in a stty-readable form

    -F, --file=DEVICE
    open and use the specified DEVICE instead of stdin

    --help display this help and exit

    --version
    output version information and exit

    Optional  - before SETTING indicates negation. An * marks non-POSIX
    settings. The underlying system defines which settings are available.

  Special characters:
    * dsusp CHAR
    CHAR will send a terminal stop signal once input flushed

    eof CHAR
    CHAR will send an end of file (terminate the input)

    eol CHAR
    CHAR will end the line

    * eol2 CHAR
    alternate CHAR for ending the line

    erase CHAR
    CHAR will erase the last character typed

    intr CHAR
    CHAR will send an interrupt signal

    kill CHAR
    CHAR will erase the current line

    * lnext CHAR
    CHAR will enter the next character quoted

    quit CHAR
    CHAR will send a quit signal

    * rprnt CHAR
    CHAR will redraw the current line

    start CHAR
    CHAR will restart the output after stopping it

    stop CHAR
    CHAR will stop the output

    susp CHAR
    CHAR will send a terminal stop signal

    * swtch CHAR
    CHAR will switch to a different shell layer

    * werase CHAR
    CHAR will erase the last word typed

  Special settings:
    N   set the input and output speeds to N bauds

    * cols N
    tell the kernel that the terminal has N columns

    * columns N
    same as cols N

    ispeed N
    set the input speed to N

    * line N
    use line discipline N

    min N with -icanon, set N characters minimum for a completed read

    ospeed N
    set the output speed to N

    * rows N
    tell the kernel that the terminal has N rows

    * size print the number of rows and columns according to the kernel

    speed print the terminal speed

    time N with -icanon, set read timeout of N tenths of a second

  Control settings:
    [-]clocal
    disable modem control signals

    [-]cread
    allow input to be received

    * [-]crtscts
    enable RTS/CTS handshaking

    csN  set character size to N bits, N in [5..8]

    [-]cstopb
    use two stop bits per character (one with `-')

    [-]hup send a hangup signal when the last process closes the tty

    [-]hupcl
    same as [-]hup

    [-]parenb
    generate parity bit in output and expect parity bit in input

    [-]parodd
    set odd parity (even with `-')

  Input settings:
    [-]brkint
    breaks cause an interrupt signal

    [-]icrnl
    translate carriage return to newline

    [-]ignbrk
    ignore break characters

    [-]igncr
    ignore carriage return

    [-]ignpar
    ignore characters with parity errors

    * [-]imaxbel
    beep and do not flush a full input buffer on a character

    [-]inlcr
    translate newline to carriage return

    [-]inpck
    enable input parity checking

    [-]istrip
    clear high (8th) bit of input characters

    * [-]iuclc
    translate uppercase characters to lowercase

    * [-]ixany
    let any character restart output, not only start character

    [-]ixoff
    enable sending of start/stop characters

    [-]ixon
    enable XON/XOFF flow control

    [-]parmrk
    mark parity errors (with a 255-0-character sequence)

    [-]tandem
    same as [-]ixoff

  Output settings:
    * bsN backspace delay style, N in [0..1]

    * crN carriage return delay style, N in [0..3]

    * ffN form feed delay style, N in [0..1]

    * nlN newline delay style, N in [0..1]

    * [-]ocrnl
    translate carriage return to newline

    * [-]ofdel
    use delete characters for fill instead of null characters

    * [-]ofill
    use fill (padding) characters instead of timing for delays

    * [-]olcuc
    translate lowercase characters to uppercase

    * [-]onlcr
    translate newline to carriage return-newline

    * [-]onlret
    newline performs a carriage return

    * [-]onocr
    do not print carriage returns in the first column

    [-]opost
    postprocess output

    * tabN horizontal tab delay style, N in [0..3]

    * tabs same as tab0

    * -tabs
    same as tab3

    * vtN vertical tab delay style, N in [0..1]

  Local settings:
    [-]crterase
    echo erase characters as backspace-space-backspace

    * crtkill
    kill all line by obeying the echoprt and echoe settings

    * -crtkill
    kill all line by obeying the echoctl and echok settings

    * [-]ctlecho
    echo control characters in hat notation (`^c')

    [-]echo
    echo input characters

    * [-]echoctl
    same as [-]ctlecho

    [-]echoe
    same as [-]crterase

    [-]echok
    echo a newline after a kill character

    * [-]echoke
    same as [-]crtkill

    [-]echonl
    echo newline even if not echoing other characters

    * [-]echoprt
    echo erased characters backward, between `\' and '/'

    [-]icanon
    enable erase, kill, werase, and rprnt special characters

    [-]iexten
    enable non-POSIX special characters

    [-]isig
    enable interrupt, quit, and suspend special characters

    [-]noflsh
    disable flushing after interrupt and quit special characters

    * [-]prterase
    same as [-]echoprt

    * [-]tostop
    stop background jobs that try to write to the terminal

    * [-]xcase
    with icanon, escape with `\' for uppercase characters

  Combination settings:
    * [-]LCASE
    same as [-]lcase

    cbreak same as -icanon

    -cbreak
    same as icanon

    cooked same as brkint ignpar istrip icrnl ixon opost isig icanon, eof
    and eol characters to their default values

    -cooked
    same as raw

    crt  same as echoe echoctl echoke

    dec  same as echoe echoctl echoke -ixany intr ^c erase 0177 kill ^u

    * [-]decctlq
    same as [-]ixany

    ek   erase and kill characters to their default values

    evenp same as parenb -parodd cs7

    -evenp same as -parenb cs8

    * [-]lcase
    same as xcase iuclc olcuc

    litout same as -parenb -istrip -opost cs8

    -litout
    same as parenb istrip opost cs7

    nl   same as -icrnl -onlcr

    -nl  same as icrnl -inlcr -igncr onlcr -ocrnl -onlret

    oddp  same as parenb parodd cs7

    -oddp same as -parenb cs8

    [-]parity
    same as [-]evenp

    pass8 same as -parenb -istrip cs8

    -pass8 same as parenb istrip cs7

    raw  same as -ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr
    -igncr -icrnl  -ixon  -ixoff -iuclc -ixany -imaxbel -opost
    -isig -icanon -xcase min 1 time 0

    -raw  same as cooked

    sane  same as cread -ignbrk brkint -inlcr -igncr icrnl -ixoff -iuclc
    -ixany imaxbel opost -olcuc -ocrnl onlcr -onocr -onlret -ofill
    -ofdel nl0 cr0 tab0 bs0 vt0 ff0 isig icanon iexten echo  echoe
    echok -echonl -noflsh -xcase -tostop -echoprt echoctl echoke,
    all special characters to their default values.

    Handle the tty line connected to standard input.  Without arguments,
    prints baud rate, line discipline, and deviations from stty sane. In
    settings, CHAR is taken literally, or coded as in ^c, 0x37, 0177 or
    127; special values ^- or undef used to disable special characters.

AUTHOR
    Written by David MacKenzie.

REPORTING BUGS
    Report bugs to <bug-coreutils@gnu.org>.

COPYRIGHT
    Copyright (C) 2002 Free Software Foundation, Inc.
    This is free software; see the source for copying conditions. There is
    NO warranty; not even for MERCHANTABILITY or FITNESS FOR  A PARTICULAR
    PURPOSE.

SEE ALSO
    The full documentation for stty is maintained as a Texinfo manual. If
    the info and stty programs are properly installed at your site, the
    command

    info stty

    should give you access to the complete manual.