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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 characters 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
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-
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.
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Control Modes
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-
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
- 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 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 will be 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 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.
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Input Modes
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-
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.
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Output Modes
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-
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)).
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Local Modes
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-
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 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 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.)
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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.
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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 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 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 character (for example, ``^d'' is a CTRL-d); ``^?'' is interpreted as DEL and ``^-'' is interpreted as undefined.
-
line i
- Set line discipline to i (0 < i < 127 ).
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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 characters to ^?, ^U, and ^C, decctlq, and crt.)
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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.
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