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|
STTY(1) User Commands STTY(1)
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 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
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
* [-]iutf8
assume input characters are UTF-8 encoded
* [-]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 char-
acters
[-]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 char-
acters
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
-iutf8 -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. With-
out 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) 2004 Free Software Foundation, Inc.
This is free software; see the source for copying condi-
tions. There is NO warranty; not even for MERCHANTABIL-
ITY or FITNESS FOR A PARTICULAR PURPOSE.
SEE ALSO
The full documentation for stty is maintained as a Tex-
info 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.
stty 5.3.0 November 2004 STTY(1)
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