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
* 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 com
pleted 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
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]
* [-]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 set
tings
* -crtkill
kill all line by obeying the echoctl and echok set
tings
* [-]ctlecho
echo control characters in hat notation (`^c')
[-]echo
echo input characters
* [-]echoctl
same as [-]ctlecho
[-]echoe
same as [-]crterase
enable erase, kill, werase, and rprnt special char
acters
[-]iexten
enable non-POSIX special characters
[-]isig
enable interrupt, quit, and suspend special charac
ters
[-]noflsh
disable flushing after interrupt and quit special
characters
* [-]prterase
same as [-]echoprt
* [-]tostop
stop background jobs that try to write to the ter
minal
* [-]xcase
with icanon, escape with `\' for uppercase charac
ters
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
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 devia
tions from stty sane. In settings, CHAR is taken liter
ally, 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 © 2003 Free Software Foundation, Inc.
This is free software; see the source for copying condi
tions. 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.
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