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 BACKSPACE key.) The sequence ^@ means that an option has a
null value.
-a
Reports all of the option settings.
-g
Reports current settings in a form that can be used as an
argument to another stty command.
-h
Reports all the option settings with the control
characters in an easy to read column format.
Options in the last group are implemented using options in the
previous groups. Many combinations of options make no sense, but no sanity
checking is performed. Hardware flow control and clock modes options might
not be supported by all hardware interfaces. The options are selected from
the following:
all
Reports the same option settings as stty without
arguments, but with the control characters in column format.
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 standard
output, first rows and then columns. This option is only appropriate if
currently running a window system.
size and speed always report on the settings of
/dev/tty, and always report the settings to the standard output.
parenb (-parenb)
Enable (disable) parity generation and detection.
parext (-parext)
Enable (disable) extended parity generation and detection
for mark and space parity.
parodd (-parodd)
Select odd (even) parity, or mark (space) parity if
parext is enabled.
cs5 cs6 cs7 cs8
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 possible.
(All speeds are not supported by all hardware interfaces.)
ispeed 0 110 300 600 1200 1800 2400 4800 9600 19200 exta
38400 extb
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 is specified by the value of the output
baud rate.
ospeed 0 110 300 600 1200 1800 2400 4800 9600 19200 exta
38400 extb
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 is 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.
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(4I)).
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.
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(4I)).
nl0 nl1
Select style of delay for line-feeds (see
termio(4I)).
tab0 tab1 tab2 tab3
Select style of delay for horizontal tabs (see
termio(4I)).
bs0 bs1
Select style of delay for backspaces (see
termio(4I)).
ff0 ff1
Select style of delay for form-feeds (see
termio(4I)).
vt0 vt1
Select style of delay for vertical tabs (see
termio(4I)).
isig (-isig)
Enable (disable) the checking of characters against the
special control characters INTR, QUIT, and SWTCH. For information on
SWTCH, see NOTES.
icanon (-icanon)
Enable (disable) canonical input (ERASE and KILL
processing). 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 erases the ERASEed character
on many CRT terminals; however, it does not keep track of column
position and, as a result, can 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. For
information on SWTCH, see NOTES.
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.)
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.
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 timing
(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 timing
(DTE source) lead, CCITT V.24 circuit 128, no EIA-232-D pin, clock
source.
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(4I)). If
c
is preceded by an (escaped from the shell) caret (
^), then the value
used is the corresponding CTRL character (for example, ``^d'' is a Control-d).
``^?'' is interpreted as DEL and ``
^−'' is interpreted as
undefined. For information on
SWTCH, see
NOTES.
line i
Set line discipline to i (0 < i <
127).
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). For information on
SWTCH, see NOTES.
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 DEL and
CTRL-u, respectively.
sane
Reset 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 characters to ^?,
^U, and ^C, decctlq, and crt.)
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.