STTY(1)                                                                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 differ‐
       ent from their defaults.  Use of one of the following options  modifies
       the output as described:

       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 out‐
                 put, 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  (inter‐
                 rupt, suspend, ...) is performed
       -cbreak   make  characters  available  to  read  only  when  newline is
                 received
       -nl       allow carriage return for new-line, and output CR-LF for car‐
                 riage return or new-line
       nl        accept only new-line to end lines
       echo      echo back every character typed
       -echo     do not echo characters
       lcase     map upper case to lower case
       -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 unde‐
       fined.  A value of ‘‘^x’’, a 2 character sequence, is also  interpreted
       as a control character, with ‘‘^?’’ representing delete.

       erase c   set  erase  character  to  c (default ‘#’, but often reset to
                 ^H.)
       kill c    set kill character to c (default ‘@’, but often reset to ^U.)
       intr c    set interrupt character to c (default DEL or ^? (delete), but
                 often reset to ^C.)
       quit c    set quit character to c (default control \.)
       start c   set start character to c (default control Q.)
       stop c    set stop character to c (default control S.)
       eof c     set end of file character to c (default control 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 ter‐
                 minal
       dec       set all modes suitable for Digital Equipment Corp.  operating
                 systems  users; (erase, kill, and interrupt characters to ^?,
                 ^U, and ^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  ter‐
                 minal
       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    is an alias for columns.

       A teletype driver which supports the job control processing  of  csh(1)
       and  more  functionality  than  the  basic driver is fully 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 like 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 (control D).
       -ctlecho  Control  characters  echo  as  themselves; in cooked mode EOT
                 (control-D) is not echoed.

       decctlq   After output is suspended (normally  by  ^S),  only  a  start
                 character  (normally ^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 control  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  tele‐
       type driver and are not normally changed.

       susp c    set suspend process character to c (default control Z).
       dsusp c   set  delayed  suspend process character to c (default control
                 Y).
       rprnt c   set reprint line character to c (default control R).
       flush c   set flush output character to c (default control O).
       werase c  set word erase character to c (default control W).
       lnext c   set literal next character to c (default control V).

SEE ALSO
       ioctl(2), tabs(1), tset(1), tty(4)


4th Berkeley Distribution         May 5, 1986                          STTY(1)
 
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