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STTY(1V) USER COMMANDS STTY(1V) NAME stty - set or alter the options for a terminal SYNOPSIS stty [ -ag ] [ option ] ... SYSTEM V SYNOPSIS /usr/5bin/stty [ -ag ] [ option ] ... AVAILABILITY The System V version of this command is available with the System V software installation option. Refer to Installing SunOS 4.1 for information on how to install optional software. 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 terminal options for the device that is the standard output; the settings are reported on the standard error. Detailed information about the modes listed in the first five groups below may be found in termio(4). 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. SYSTEM V DESCRIPTION stty sets or reports terminal options for the device that is the current standard input; the settings are reported on the standard output. OPTIONS -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. Special Requests speed The terminal speed alone is printed on the stan- dard output. size The terminal (window) sizes are printed on the standard output, first rows and then columns. size and speed always report on the settings of /dev/tty, and always report the settings to the standard output. Control Modes [-]parenb Enable parity generation and detection. With a `-', disable parity checking. [-]parodd Select odd parity. With a `-', select even par- ity. cs5 cs6 cs7 cs8 Select character size. 0 Hang up phone line immediately. 38400 extb 50 75 110 134 150 200 300 600 1200 1800 2400 4800 9600 19200 exta Set terminal baud rate to the number given, if possible. (Not all speeds are supported by all hardware interfaces.) [-]hupcl Hang up connection on last close. With a `-', do not hang up connection. [-]hup Same as hupcl. [-]cstopb Use two stop bits per character. With a `-', use one stop bit per character. [-]cread Enable the receiver. With a `-', disable the receiver. [-]clocal Assume a line without modem control. With a `-', assume a line with modem control. Input Modes [-]ignbrk Ignore break on input. With a `-', do not ignore a break on input. [-]brkint Signal SIGINT on break. With a `-', do not sig- nal. [-]ignpar Ignore parity errors. With a `-', do not ignore parity errors. [-]parmrk Mark parity errors With a `-', do not mark par- ity errors. [-]inpck Enable input parity checking. With a `-', dis- able input parity checking. [-]istrip Strip input characters to seven bits. With a `-', do not strip input characters. [-]inlcr Map NEWLINE to RETURN on input. With a `-', do not map on input. [-]igncr Ignore RETURN on input. With a `-', do not ignore RETURN on input. [-]icrnl Map RETURN to NEWLINE on input. With a `-', do not map. [-]iuclc Map upper-case alphabetics to lower case on input. With a `-', do not map. [-]ixon Enable START/STOP output control. With a `-', disable output control. When enabled, output is stopped by sending a STOP character and started by sending a START character. [-]ixany Allow any character to restart output. With a `-', only restart with a START character. [-]decctlq Same as -ixany. [-]ixoff Request that the system send START/STOP charac- ters when the input queue is nearly empty/full. With a `-', request that the system not send START/STOP characters. [-]tandem Same as ixoff. [-]imaxbel Request that the system send a BEL character to your terminal, and not to flush the input queue, if a character received when the input queue is full. With a `-', request that it flush the input queue and not send a BEL character. [-]iexten Enable all SunOS special characters, such as word erase. With a `-', enable only the POSIX subset of special characters (INTR, QUIT, ERASE, KILL, EOF, NL, EOL, SUSP, STOP, START, and CR). Output Modes [-]opost Post-process output. With a `-', do not post- process output; ignore all other output modes. [-]olcuc Map lower-case alphabetics to upper case on out- put. With a `-', do not map. [-]onlcr Map NEWLINE to RETURN-NEWLINE on output. With a `-', do not map. [-]ocrnl Map RETURN to NEWLINE on output. With a `-', do not map. [-]onocr Do not place RETURN characters at column zero. With a `-', do place RETURN characters at column zero. [-]onlret On the terminal NEWLINE performs the RETURN function. With a `-', NEWLINE does not perform the RETURN function. [-]ofill Use fill characters for delays. With a `-', use timing for delays. [-]ofdel Fill characters are DEL characters. With a `-', fill characters are NUL characters. cr0 cr1 cr2 cr3 Select style of delay for RETURN characters. nl0 nl1 Select style of delay for LINEFEED characters. tab0 tab1 tab2 tab3 Select style of delay for horizontal TAB charac- ters. bs0 bs1 Select style of delay for BACKSPACE characters. ff0 ff1 Select style of delay for form FORMFEED charac- ters. vt0 vt1 Select style of delay for vertical TAB charac- ters. Local Modes [-]isig Enable the checking of characters against the special characters INTR and QUIT. With a `-', disable this checking. [-]icanon Enable canonical input (ERASE, KILL, WERASE, and RPRNT processing). With a `-', disable canoni- cal input. [-]cbreak Same as -icanon. [-]xcase Perform canonical upper/lower-case presentation. With a `-', do not perform canonical upper/lower-case presentation. [-]echo Echo back every character typed. With a `-', do not echo back. [-]echoe Echo the ERASE character as a sequence of BACKSPACE-SPACE-BACKSPACE. With a `-', echo the ERASE character as itself. [-]crterase Same as echoe. [-]echok Echo NEWLINE after echoing a KILL character. With a `-', do not echo NEWLINE after echoing a KILL character. lfkc Same as echok; obsolete. [-]echonl Echo NEWLINE, even if echo is not set. With a `-', do not echo NEWLINE if echo is not set. [-]noflsh Disable flush after INTR or QUIT. With a `-', enable flush. [-]tostop Stop background jobs that attempt to write to the terminal. With a `-', allow background jobs to write to the terminal. [-]echoctl Echo control characters as x (and delete as `?'.) Print two BACKSPACE characters following the EOF character (default CTRL-D). With a `-', echo control characters as themselves. [-]ctlecho Same as echoctl. [-]echoprt Echo erased characters backwards within `\' and `/'; used on printing terminals. With a `-', echo erased characters as indicated by echoe. [-]prterase Same as echoprt. [-]echoke Echo the KILL character by erasing each charac- ter on the line as indicated by echoprt and echoe. With a `-', echo the KILL character as indicated by echoctl and echok. [-]crtkill Same as echoke. control-character c Set control-character to c, where control- character is one of erase, kill, intr, quit, eof, eol, eol2, start, stop, susp, rprnt, flush, werase, or lnext. If c is preceded by a caret (^), (escaped from the shell) then the value used is the corresponding CTRL character (for instance, `^D' is a CTRL-D); `^?' is interpreted as DEL and `^-' is interpreted as undefined. min i Set the MIN value to i. time i Set the TIME value to i. rows n Set the recorded number of rows on the terminal to i. columns i Set the recorded number of columns on the termi- nal to i. cols i An alias for columns i. Combination Modes cooked Process the ERASE, WERASE, KILL, INTR, QUIT, EOF, EOL, EOL2, STOP, START, SUSP, RPRNT, FLUSH, and LNEXT characters specially, and perform out- put post-processing. evenp or parity Enable parenb, disable parodd, and set cs7. oddp Enable parenb and parodd, and set cs7. -evenp or -parity Disable parenb, and set cs8. -oddp Disable parenb and parodd, and set cs8. pass8 Disable parenb and istrip, and set cs8. -pass8 Enable parenb and istrip, and set cs7. litout Disable parenb, istrip, and opost, and set cs8. -litout Enable parenb, istrip, and opost, and set cs7. [-]raw Enable raw input and output. With a `-', dis- able raw I/O. In raw mode, there is no special processing of the ERASE, WERASE, KILL, INTR, QUIT, EOF, EOL, EOL2, STOP, START, SUSP, RPRNT, FLUSH, nor LNEXT characters, nor is there any other input pre-processing nor output post- processing. brkint, istrip, imaxbel, and parenb are disabled, and cs8 is set. [-]nl Unset icrnl, onlcr. With a `-', set them. In addition -nl unsets inlcr, igncr, ocrnl, and onlret. [-]lcase Set xcase, iuclc, and olcuc. With a `-', unset them. [-]LCASE Same as lcase (-lcase). [-]tabs tab3 Preserve TAB characters when printing. With a `-', or with tab3, expand TAB characters to SPACE characters. ek Reset the ERASE and KILL characters back to nor- mal: DEL and CTRL-U). sane Reset all modes to some reasonable values. 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.) term Set all modes suitable for the terminal type term, where term is one of tty33, tty37, vt05, tn300, ti700, or tek. -crtscts Raise the RTS (Request to Send) modem control line. Suspends output until the CTS (Clear to Send) line is raised. ENVIRONMENT The environment variables LC_CTYPE, LANG, and LC_default control the character classification throughout stty. On entry to stty, these environment variables are checked in the following order: LC_CTYPE, LANG, and LC_default. When a valid value is found, remaining environment variables for character classification are ignored. For example, a new setting for LANG does not override the current valid charac- ter classification rules of LC_CTYPE. When none of the values is valid, the shell character classification defaults to the POSIX.1 "C" locale. SEE ALSO ioctl(2), termio(4), locale(5) Sun Release 4.1 Last change: 2 October 1989