stty man page on HP-UX

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stty(1)								       stty(1)

       stty - set the options for a terminal port


       sets  or	 reports  current settings of certain terminal I/O options for
       the device that is the current standard input.  The command takes  four

	      Report the settings of a system-defined set of options;

	      Report all of current option settings;

	      Report current settings in a form
				  that	can  be used as an argument to another

	      Set terminal I/O options as defined by

       For detailed information about the modes listed below in	 and  as  they
       relate to asynchronous lines, see termio(7).

       For   detailed	information  about  the	 modes	listed	below  in  see

       Options in the group are implemented  using  options  in	 the  previous
       groups.	 Note  that many combinations of options make no sense, but no
       sanity checking is performed.

       The options are defined in the following groups.

   Control Modes
       Set the terminal window row size equal to

       Set the terminal window column size (width) equal to
				number.	 can be used as an abbreviation for

       Enable (disable) parity generation and detection.

       Select odd (even) parity.

       Select character size (see

       Hang up phone line immediately.

       Set terminal baud rate to the number given, if possible
				(some hardware interfaces do  not  sup‐
				port  all  of  the speeds listed here).
				Speeds above  38400  are  supported  on
				Series 700 only.

       Set terminal input baud rate to
				number.	  If  number is zero, the input
				baud rate is set to the	 value	of  the
				output baud rate.

       Set terminal output baud rate to
				number.	  If  number is zero, the modem
				control lines are  released,  which  in
				turn disconnects the line.

       Hang up (do not hang up) modem connection on last close.

       Same as

       Use two (one) stop bits per character.

       Enable (disable) the receiver.

       Enable (disable) request-to-send.

       Assume a line without (with) modem control.

       Block (do not block) output from a noncurrent layer.

       Reset the Guardian Service Processor (GSP) of the console.
				This mode can be used only by the supe‐
				ruser.	This is supported only on  spe‐
				cific hardware.

   Input Modes
       Ignore (do not ignore) break on input.

       Enable (disable) ENQ-ACK Handshaking.

       Signal (do not signal) INTR on break.

       Ignore (do not ignore) parity errors.

       Mark (do not mark) parity errors (see

       Enable (disable) input parity checking.

       Strip (do not strip) input characters to seven bits.

       Map (do not map) newline character to carriage return (CR)
				on input.

       Ignore (do not ignore) CR on input.

       Map (do not map) CR	to a newline character on input.

       Map (do not map) uppercase alphabetic characters to lowercase on

       Enable (disable) START/STOP
				output control.	 Output is  stopped  by
				sending	 an  ASCII  DC3	 and started by
				sending an ASCII DC1.

       Allow any character (only DC1)
				to restart output.

       Request that the system send (not send) START/STOP characters
				when  the   input   queue   is	 nearly

       Echo (do not echo) BEL	when the input line is too long.

   Output Modes
       Post-process output (do not post-process output;
				ignore all other output modes).

       Map (do not map) lowercase alphabetics to uppercase on output.

       Map (do not map) newline character to a
				carriage-return/newline	      character
				sequence on output.

       Map (do not map) CR to newline character on output.

       Do not (do) output CRs	at column zero.

       On the terminal, a newline character
				performs  (does	 not  perform)	the  CR

       Use fill characters (use timing) for delays.

       Fill characters are DELs ( NULs).

       Select style of delay for carriage returns (see

       Select style of delay for newline characters (see

       Select style of delay for horizontal tabs (see

       Select style of delay for backspaces (see

       Select style of delay for form-feeds (see

       Select style of delay for vertical tabs (see

   Local Modes
       Enable  (disable) the checking of characters against the special
				characters INTR and QUIT.

       Enable (disable) canonical input (ERASE and KILL processing).

       Enable  (disable)  any  implementation-defined  special	control
				not currently controlled by or

       Canonical (unprocessed) uppercase and lowercase presentation.

       Echo back (do not echo back) every character typed.

       Echo  (do  not  echo)  ERASE  character	as  a  backspace-space-
       backspace string.
				Note:  this  mode  erases  the	ERASEed
				character  on many CRT terminals.  How‐
				ever, it does not keep track of	 column
				position and, as a result, may not cor‐
				rectly erase escaped characters,  tabs,
				and backspaces.

       Echo (do not echo) a newline character
				after a KILL character.

       (obsolete) Same as

       Echo (do not echo) newline character.

       Disable (enable) flush after INTR or QUIT.

       Echo (do not echo) control characters as
				delete as

       Echo (do not echo) erase character as
				character is erased.

       BS-SP-BS erase (do not BS-SP-BS erase) entire
				line on line kill.

       Output is (is not) being flushed.

       Retype (do not retype) pending output at next
				read or input character.

       Enable (disable) generation of SIGTTOU
				signals	 when  background  jobs attempt

   Hardware Flow Control Modes
       The following options are reserved for use  with	 those	devices
       that  support  hardware	flow control through the termiox inter‐
       face.  If the functionality is supported, this interface must be

       Enable (disable) RTS hardware flow control on input (see

       Enable (disable) CTS hardware flow control on output (see

   Control Assignments
       control-character c	Set  control-character	to character c.
				See termio(7).

				       One of:

				       or and are used with

				       or for systems that support  job

				       for  systems  that support shell
				       layers (see shl(1)).

				c      A character or a character-pair.
				       A character-pair is made up of a
				       circumflex and a letter or  sym‐
				       bol;  it represents the value of
				       the corresponding control  char‐
				       acter.  For example,

				       represents NUL.

				       or represents or EOT.

				       represents DEL.

				       sets  control-character to unde‐

				       Some characters may need	 to  be
				       escaped from the shell (quoted).

       Set line discipline to	i where the value of i ranges from zero
				through 127 decimal (See termio(7)).

   Combination Modes
       Enable			and

       Enable			and

       Disable			and set

       Enable (disable) raw input and output
				(no ERASE, KILL, INTR,	QUIT,  EOT,  or
				output post processing).  See

       Unset (set)		and In addition unsets and

       Set (unset)		and

       Same as

       Preserve (expand to spaces) tabs when printing.

       Reset ERASE and KILL characters back to default

       Reset all modes to some reasonable values.

       Set all modes suitable for the terminal type
				term, where term is one of or

   Reporting Functions
       Print terminal window size to standard output
				in a rows-and-columns format.

       Print the status of the Guardian Service Processor (GSP)
				of  the	 console.  This function can be
				used only by the superuser.  This  fea‐
				ture  is  available  only  on  specific

   Control Character Default Assignments
       The control characters are assigned default values when the ter‐
       minal  port  is	opened; see termio(7).	The default values used
       are those specified by the (SVID3), except for the  and	control
       characters,  which  are	set to to maintain binary compatibility
       with previous releases of HP-UX.

       The default values for the control characters may be changed  by
       a privileged user by using and redirecting standard input to the
       device Any of the four command forms specified  in  the	section
       above may be used.  However, only the control character defaults
       will be reported or altered.  It will  have  no	effect	on  the
       defaults for any of the other modes.

       Note  that these defaults will be used for all terminal ports in
       the system, except the system console (but see  getty(1M)),  and
       the  changes  will  not	become	effective for a particular port
       until it is (re)opened.	The default control  character	assign‐
       ment  will  not	work with the system console because the system
       console is never closed while the system is running, and	 there‐
       fore cannot be reopened.

       Care should be exercised when re-assigning the control character
       defaults.  Control character values should be tested with appli‐
       cations before assigning them as a default value.

   Environment Variables
       determines the valid control characters for printing.

       If  is  not  specified in the environment or is set to the empty
       string, the value of is used as a default for  each  unspecified
       or  empty  variable.  If is not specified or is set to the empty
       string, a default of "C" (see lang(5)) is used instead of If any
       internationalization   variable	contains  an  invalid  setting,
       behaves as if all internationalization variables are set to "C".
       See environ(5).

   International Code Set Support
       Single-byte character code sets are supported.

   Example 1
       Set  the	 delete-line  character	 to  (Ctrl-X) and the interrupt
       character to

       This command is usually found in a or file so that and need  not
       be set by the user at each login session.

   Example 2
       Set  the	 default values for the delete-line character to (Ctrl-
       X), the interrupt character to and the word erase character to

       Any terminal port opened after this command is issued  will  see
       these new default values for the and control characters.

       Use of mode produces certain side effects which have varied from
       release to release in the past  and  may	 vary  in  the	future.
       Relying	on these side effects in applications can lead to unre‐
       liable results in the future and is therefore discouraged.

       Refer to the section of termio(7) for a further	description  of
       capabilities that are not supported.

       shl(1), tabs(1), getty(1M), ioctl(2), termio(7), termiox(7).


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