stty(1B)
NAME
stty - set the options for a terminal
SYNOPSIS
/usr/ucb/stty [-a] [-g] [-h] [modes]
DESCRIPTION
stty sets certain terminal I/O options for the device that
is the current standard output; without arguments, it
reports the settings of certain options.
OPTIONS
In this report, if a character is preceded by a caret (^),
then the value of that option is the corresponding CTRL
character (for example, ``^h'' is CTRL-H; in this case,
recall that CTRL-H is the same as the ``back-space'' key.)
The sequence ``^''' means that an option has a null value.
-a Report all of the option settings.
-g Report current settings in a form that can be used as
an argument to another stty command.
-h Report all the option settings with the control char-
acters in an easy to read column format.
Options in the last group are implemented using options in
the previous groups. Note: Many combinations of options
make no sense, but no sanity checking is performed. Hardware
flow control and clock modes options may not be supported by
all hardware interfaces. The options are selected from the
following:
Special Requests
all Reports the same option settings as stty without argu-
ments, but with the control characters in column for-
mat.
everything
Everything stty knows about is printed. Same as -h
option.
speed The terminal speed alone is reported on the standard
output.
size The terminal (window) sizes are printed on the stan-
dard output, first rows and then columns. This option
is only appropriate if currently running a window sys-
tem.
size and speed always report on the settings of
/dev/tty, and always report the settings to the
standard output.
Control Modes
parenb (-parenb)
Enable (disable) parity generation and detection.
parext (-parext)
Enable (disable) extended parity generation and detec-
tion for mark and space parity.
parodd (-parodd)
Select odd (even) parity, or mark (space) parity if
parext is enabled.
cs5 cs6 cs7 cs8
Select character size (see termio(7I)).
0 Hang up line immediately.
110 300 600 1200 1800 2400 4800 9600 19200 exta 38400 extb
Set terminal baud rate to the number given, if possi-
ble. (All speeds are not supported by all hardware
interfaces.)
extb
ispeed 0 110 300 600 1200 1800 2400 4800 9600 19200 exta 38400
Set terminal input baud rate to the number given, if
possible. (Not all hardware supports split baud
rates.) If the input baud rate is set to zero, the
input baud rate will be specified by the value of the
output baud rate.
extb
ospeed 0 110 300 600 1200 1800 2400 4800 9600 19200 exta 38400
Set terminal output baud rate to the number given, if
possible. (Not all hardware supports split baud
rates.) If the baud rate is set to zero, the line
will be hung up immediately.
hupcl (-hupcl)
Hang up (do not hang up) connection on last close.
hup (-hup)
Same as hupcl (-hupcl).
cstopb (-cstopb)
Use two (one) stop bits per character.
cread (-cread)
Enable (disable) the receiver.
clocal (-clocal)
Assume a line without (with) modem control.
crtscts (-crtscts)
Enable hardware flow control. Raise the RTS (Request
to Send) modem control line. Suspends output until
the CTS (Clear to Send) line is raised.
loblk (-loblk)
Block (do not block) output from a non-current layer.
Input Modes
ignbrk (-ignbrk)
Ignore (do not ignore) break on input.
brkint (-brkint)
Signal (do not signal) INTR on break.
ignpar (-ignpar)
Ignore (do not ignore) parity errors.
parmrk (-parmrk)
Mark (do not mark) parity errors (see termio(7I)).
inpck (-inpck)
Enable (disable) input parity checking.
istrip (-istrip)
Strip (do not strip) input characters to seven bits.
inlcr (-inlcr)
Map (do not map) NL to CR on input.
igncr (-igncr)
Ignore (do not ignore) CR on input.
icrnl (-icrnl)
Map (do not map) CR to NL on input.
iuclc (-iuclc)
Map (do not map) upper-case alphabetics to lower case
on input.
ixon (-ixon)
Enable (disable) START/STOP output control. Output is
stopped by sending an STOP and started by sending an
START.
ixany (-ixany)
Allow any character (only START) to restart output.
decctlq (-decctlq)
Same as -ixany.
ixoff (-ixoff)
Request that the system send (not send) START/STOP
characters when the input queue is nearly empty/full.
tandem (-tandem)
Same as ixoff.
imaxbel (-imaxbel)
Echo (do not echo) BEL when the input line is too
long.
iexten (-iexten)
Enable (disable) extended (implementation-defined)
functions for input data.
Output Modes
opost (-opost)
Post-process output (do not post-process output;
ignore all other output modes).
olcuc (-olcuc)
Map (do not map) lower-case alphabetics to upper case
on output.
onlcr (-onlcr)
Map (do not map) NL to CR-NL on output.
ocrnl (-ocrnl)
Map (do not map) CR to NL on output.
onocr (-onocr)
Do not (do) output CRs at column zero.
onlret (-onlret)
On the terminal NL performs (does not perform) the CR
function.
ofill (-ofill)
Use fill characters (use timing) for delays.
ofdel (-ofdel)
Fill characters are DELs (NULs).
cr0 cr1 cr2 cr3
Select style of delay for carriage returns (see
termio(7I)).
nl0 nl1
Select style of delay for line-feeds (see termio(7I)).
tab0 tab1 tab2 tab3
Select style of delay for horizontal tabs (see
termio(7I)).
bs0 bs1
Select style of delay for backspaces (see termio(7I)).
ff0 ff1
Select style of delay for form-feeds (see termio(7I)).
vt0 vt1
Select style of delay for vertical tabs (see
termio(7I)).
Local Modes
isig (-isig)
Enable (disable) the checking of characters against
the special control characters INTR, QUIT, and SWTCH.
icanon (-icanon)
Enable (disable) canonical input (ERASE and KILL pro-
cessing). Does not set MIN or TIME.
cbreak (-cbreak)
Equivalent to -icanon min 1 time 0.
xcase (-xcase)
Canonical (unprocessed) upper/lower-case presentation.
echo (-echo)
Echo back (do not echo back) every character typed.
echoe (-echoe)
Echo (do not echo) ERASE character as a backspace-
space-backspace string. Note: This mode will erase
the ERASEed character on many CRT terminals; however,
it does not keep track of column position and, as a
result, may be confusing on escaped characters, tabs,
and backspaces.
crterase (-crterase)
Same as echoe.
echok (-echok)
Echo (do not echo) NL after KILL character.
lfkc (-lfkc)
The same as echok (-echok); obsolete.
echonl (-echonl)
Echo (do not echo) NL.
noflsh (-noflsh)
Disable (enable) flush after INTR, QUIT, or SWTCH.
stwrap (-stwrap)
Disable (enable) truncation of lines longer than 79
characters on a synchronous line. (Does not apply to
the 3B2.)
tostop (-tostop)
Send (do not send) SIGTTOU for background processes.
echoctl (-echoctl)
Echo (do not echo) control characters as ^char, delete
as ^?
ctlecho (-ctlecho)
Same as echoctl.
echoprt (-echoprt)
Echo (do not echo) erase character as character is
``erased''.
prterase (-prterase)
Same as echoprt.
echoke (-echoke)
BS-SP-BS erase (do not BS-SP-BS erase) entire line on
line kill.
crtkill (-crtkill)
Same as echoke.
flusho (-flusho)
Output is (is not) being flushed.
pendin (-pendin)
Retype (do not retype) pending input at next read or
input character.
stflush (-stflush)
Enable (disable) flush on a synchronous line after
every write(2). (Does not apply to the 3B2.)
stappl (-stappl)
Use application mode (use line mode) on a synchronous
line. (Does not apply to the 3B2.)
Hardware Flow Control Modes
rtsxoff (-rtsxoff)
Enable (disable) RTS hardware flow control on input.
ctsxon (-ctsxon)
Enable (disable) CTS hardware flow control on output.
dterxoff (-dterxoff)
Enable (disable) DTER hardware flow control on input.
rlsdxon (-rlsdxon)
Enable (disable) RLSD hardware flow control on output.
isxoff (-isxoff)
Enable (disable) isochronous hardware flow control on
input.
Clock Modes
xcibrg
Get transmit clock from internal baud rate generator.
xctset
Get the transmit clock from transmitter signal element
timing (DCE source) lead, CCITT V.24 circuit 114,
EIA-232-D pin 15.
xcrset
Get transmit clock from receiver signal element timing
(DCE source) lead, CCITT V.24 circuit 115, EIA-232-D
pin 17.
rcibrg
Get receive clock from internal baud rate generator.
rctset
Get receive clock from transmitter signal element tim-
ing (DCE source) lead, CCITT V.24 circuit 114, EIA-
232-D pin 15.
rcrset
Get receive clock from receiver signal element timing
(DCE source) lead, CCITT V.24 circuit 115, EIA-232-D
pin 17.
tsetcoff
Transmitter signal element timing clock not provided.
tsetcrc
Output receive clock on transmitter signal element
timing (DTE source) lead, CCITT V.24 circuit 113,
EIA-232-D pin 24, clock source.
tsetcxc
Output transmit clock on transmitter signal element
timing (DTE source) lead, CCITT V.24 circuit 113,
EIA-232-D pin 24, clock source.
rsetcoff
Receiver signal element timing clock not provided.
rsetcrc
Output receive clock on receiver signal element timing
(DTE source) lead, CCITT V.24 circuit 128, no EIA-
232-D pin, clock source.
rsetcxc
Output transmit clock on receiver signal element tim-
ing (DTE source) lead, CCITT V.24 circuit 128, no
EIA-232-D pin, clock source.
Control Assignments
control-character c
Set control-character to c, where control-character is
intr, quit, erase, kill, eof, eol, eol2, swtch, start,
stop, susp, dsusp, rprnt, flush, werase, lnext min,
ctab, time, or brk) (ctab is used with -stappl; min
and time are used with -icanon; see termio(7I)). If c
is preceded by an (escaped from the shell) caret (^),
then the value used is the corresponding CTRL charac-
ter (for example, ``^d'' is a CTRL-d); ``^?'' is
interpreted as DEL and ``^-'' is interpreted as unde-
fined.
line i
Set line discipline to i (0 < i < 127 ).
Combination Modes
evenp or parity
Enable parenb and cs7.
-evenp, or -parity
Disable parenb, and set cs8.
even (-even)
Same as evenp (-evenp).
oddp Enable parenb, cs7, and parodd.
-oddp Disable parenb and parodd, and set cs8.
odd (-odd)
Same as oddp (-oddp).
spacep
Enable parenb, cs7, and parext.
-spacep
Disable parenb and parext, and set cs8.
markp Enable parenb, cs7, parodd, and parext.
-markp
Disable parenb, parodd, and parext, and set cs8.
raw (-raw or cooked)
Enable (disable) raw input and output (no ERASE, KILL,
INTR, QUIT, SWTCH, EOT, or output post processing).
nl (-nl)
Unset (set) icrnl, onlcr. In addition -nl unsets
inlcr, igncr, ocrnl, and onlret.
lcase (-lcase)
Set (unset) xcase, iuclc, and olcuc.
LCASE (-LCASE)
Same as lcase (-lcase).
tabs (-tabs or tab3)
Preserve (expand to spaces) tabs when printing.
ek Reset ERASE and KILL characters back to normal # and
@.
sane Resets all modes to some reasonable values.
term Set all modes suitable for the terminal type term,
where term is one of tty33, tty37, vt05, tn300,
ti700, or tek.
async Set normal asynchronous communications where clock
settings are xcibrg, rcibrg, tsetcoff and rsetcoff.
litout (-litout)
Disable (enable) parenb, istrip, and opost, and set
cs8 (cs7).
pass8 (-pass8)
Disable (enable) parenb and istrip, and set cs8
(cs7).
crt Set options for a CRT (echoe, echoctl, and, if >= 1200
baud, echoke.)
dec Set all modes suitable for Digital Equipment Corp.
operating systems users ERASE, KILL, and INTR charac-
ters to ^?, ^U, and ^C, decctlq, and crt.)
Window Size
rowsn Set window size to n rows.
columnsn
Set window size to n columns.
colsn An alias for columns n.
ypixelsn
Set vertical window size to n pixels.
xpixelsn
Set horizontal window size to n pixels.
ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Availability | SUNWscpu |
|_____________________________|_____________________________|
SEE ALSO
tabs(1), ioctl(2), attributes(5), termio(7I), termiox(7I)
Man(1) output converted with
man2html