STTY(1) BSD STTY(1)
NAME
stty - set terminal options
SYNOPSIS
stty [ option ... ]
DESCRIPTION
stty sets certain I/O options on the current output terminal, placing its
output on the diagnostic output. With no argument, it reports the speed
of the terminal and the settings of the options which are different from
their defaults. Use of one of the following options modifies the output
as described:
OPTIONS
all All normally used option settings are reported.
everything
Everything stty knows about is printed.
speed The terminal speed alone is printed on the standard output.
size The terminal (window) sizes are printed on the standard output,
first rows and then columns.
The option strings are selected from the following set:
even Allow even parity input.
-even Disallow even parity input.
odd Allow odd parity input.
-odd Disallow odd parity input.
raw Raw mode input (no input processing (erase, kill, interrupt,
...); parity bit passed back).
-raw Negate raw mode.
cooked Same as -raw.
cbreak Make each character available to read(2) as received; no erase
and kill processing, but all other processing (interrupt,
suspend, ...) is performed.
-cbreak Make characters available to read Only when newline is
received.
-nl Allow carriage return for newline, and output CR-LF for
carriage return or newline.
nl Accept only newline to end lines.
echo Echo back every character typed.
-echo Do not echo characters.
lcase Map uppercase to lowercase.
-lcase Do not map case
tandem Enable flow control, so that the system sends out the stop
character when its internal queue is in danger of overflowing
on input, and sends the start character when it is ready to
accept further input.
-tandem Disable flow control.
-tabs Replace tabs by spaces when printing.
tabs Preserve tabs.
ek Set erase and kill characters to # and @.
For the following commands which take a character argument c, you may
also specify c as the "u" or "undef", to set the value to be undefined.
A value of "^x", a two character sequence, is also interpreted as a
control character, with "^?" representing delete.
erase c Set erase character to c (default `#', but often reset to
CTRL/H).
kill c Set kill character to c (default `@', but often reset to
CTRL/U).
intr c Set interrupt character to c (default DEL or CTRL/? (delete),
but often reset to CTRL/C).
quit c Set quit character to c (default CTRL/\).
start c Set start character to c (default CTRL/Q).
stop c Set stop character to c (default CTRL/S).
eof c Set end of file character to c (default CTRL/D).
brk c Set break character to c (default undefined). This character
is an additional character causing wakeup.
cr0 cr1 cr2 cr3
Select style of delay for carriage return (see ioctl(2)).
nl0 nl1 nl2 nl3
Select style of delay for linefeed.
tab0 tab1 tab2 tab3
Select style of delay for tab.
ff0 ff1 Select style of delay for form feed.
bs0 bs1 Select style of delay for backspace.
tty33 Set all modes suitable for the Teletype Corporation Model 33
terminal.
tty37 Set all modes suitable for the Teletype Corporation Model 37
terminal.
vt05 Set all modes suitable for Digital Equipment Corp. VT05
terminal.
dec Set all modes suitable for Digital Equipment Corp. operating
systems users; (erase, kill, and interrupt characters to
CTRL/?, CTRL/U, and CTRL/C, decctlq and "newcrt".)
tn300 Set all modes suitable for a General Electric TermiNet 300.
ti700 Set all modes suitable for Texas Instruments 700 series
terminal.
tek Set all modes suitable for Tektronix 4014 terminal.
0 Hang up phone line immediately.
50 75 110 134 150 200 300 600 1200 1800 2400 4800 9600 exta extb
Set terminal baud rate to the number given, if possible.
(These are the speeds supported by the DH-11 interface.)
rows n The terminal size is recorded as having n rows.
columns n The terminal size is recorded as having n columns.
cols n An alias for columns.
A teletype driver that supports the job control processing of csh(1) and
more functionality than the basic driver is described in tty(4). The
following options apply only to it.
new Use new driver (switching flushes typeahead).
crt Set options for a CRT (crtbs, ctlecho and, if >= 1200 baud,
crterase and crtkill).
crtbs Echo backspaces on erase characters.
prterase For printing terminal echo erased characters backwards within
"\" and "/".
crterase Wipe out erased characters with "backspace-space-backspace."
-crterase Leave erased characters visible; just backspace.
crtkill Wipe out input on line kill, ala crterase.
-crtkill Just echo line kill character and a newline on line kill.
ctlecho Echo control characters as "^x" (and delete as "^?".) Print
two backspaces following the EOT character (CTRL/D).
-ctlecho Control characters echo as themselves; in cooked mode EOT
(CTRL/D) is not echoed.
decctlq After output is suspended (normally by CTRL/S), only a start
character (normally CTRL/Q) will restart it. This is
compatible with DEC's vendor supplied systems.
-decctlq After output is suspended, any character typed will restart it;
the start character will restart output without providing any
input. (This is the default.)
tostop Background jobs stop if they attempt terminal output.
-tostop Output from background jobs to the terminal is allowed.
tilde Convert "~" to "`" on output (for Hazeltine terminals).
-tilde Leave poor "~" alone.
flusho Output is being discarded usually because user hit CTRL/O
(internal state bit).
-flusho Output is not being discarded.
pendin Input is pending after a switch from cbreak to cooked and will
be re-input when a read becomes pending or more input arrives
(internal state bit).
-pendin Input is not pending.
pass8 Passes all 8 bits through on input, in any mode.
-pass8 Strips the 0200 bit on input except in raw mode.
mdmbuf Start/stop output on carrier transitions (not implemented).
-mdmbuf Return error if write attempted after carrier drops.
litout Send output characters without any processing.
-litout Do normal output processing, inserting delays, etc.
nohang Don't send hangup signal if carrier drops.
-nohang Send hangup signal to control process group when carrier drops.
etxack Diablo style etx/ack handshaking (not implemented).
The following special characters are applicable only to the new teletype
driver and are not normally changed.
susp c Set suspend process character to c (default CTRL/Z).
dsusp c Set delayed suspend process character to c (default CTRL/Y).
rprnt c Set reprint line character to c (default CTRL/R).
flush c Set flush output character to c (default CTRL/O).
werase c Set word erase character to c (default CTRL/W).
lnext c Set literal next character to c (default CTRL/V).
NOTES
Setting tty characters via stty will not affect Display Manager key
bindings.
SEE ALSO
ioctl(2), tabs(1), tset(1), tty(4)