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RESIZE(1)			X Window System			     RESIZE(1)

       resize  - set environment and terminal settings to current xterm	window

       resize [	-v | -u	| -c ] [ -s [ row col ]	]

       Resize prints a shell command for setting the  appropriate  environment
       variables  to  indicate the current size	of xterm window	from which the
       command is run.

       Resize determines the command through several steps:

       o   first, it finds the name of the user's shell	program.  It uses  the
	   SHELL  variable  if	set,  otherwise	 it  uses the user's data from

       o   then	it decides whether to use Bourne shell syntax or C-Shell  syn-
	   tax.	  It uses a built-in table of known shells, which can be over-
	   ridden by the -u and	-c options.

       o   then	resize asks the	operating system for  the  terminal  settings.
	   This	is the same information	which can be manipulated using stty.

       o   then	 resize	asks the terminal for its size in characters.  Depend-
	   ing on whether the "-s option is given, resize uses a different es-
	   cape	sequence to ask	for this information.

       o   at  this  point, resize attempts to update the terminal settings to
	   reflect the terminal	window's size in pixels:

	   o   if the -s option	is used, resize	then asks the terminal for its
	       size in pixels.

	   o   otherwise, resize asks the operating system for the information
	       and updates that	after ensuring that  the  window's  dimensions
	       are a multiple of the character height and width.

	   o   in  either case,	the updated terminal settings are done using a
	       different system	call than used for stty.

       o   then	resize updates the terminal settings to	 reflect  any  altered
	   values  such	as its size in rows or columns.	 This affects the val-
	   ues shown by	stty.

       o   finally, resize generates shell commands for	setting	 the  environ-
	   ment	variables, and writes that to the standard output.

       For  resize's output to take effect, resize must	either be evaluated as
       part of the command line	(usually done with a shell alias or  function)
       or  else	 redirected  to	 a file	which can then be read in.  From the C
       shell (usually known as /bin/csh), the following	alias could be defined
       in the user's .cshrc:

	       %  alias	rs 'set	noglob;	eval `resize`'

       After resizing the window, the user would type:

	       %  rs

       Users  of  versions of the Bourne shell (usually	known as /bin/sh) that
       don't have command functions will need to send the output to  a	tempo-
       rary file and then read it back in with the "." command:

	       $  resize > /tmp/out
	       $  . /tmp/out

       The following options may be used with resize:

       -c      This option indicates that C shell commands should be generated
	       even if the user's current shell	does not appear	to use C shell

       -s [rows	columns]
	       This option indicates that Sun console escape sequences will be
	       used instead of the VT100-style xterm escape  codes.   If  rows
	       and  columns are	given, resize will ask the xterm to resize it-
	       self using those	values.

	       Both of the escape sequences used for this option (first	to ob-
	       tain  the  window  size and second to modify it)	are subject to
	       xterm's allowWindowOps resource setting.	  The  window  manager
	       may also	choose to disallow the change.

	       The  VT100-style	 escape	 sequence used to determine the	screen
	       size always works for VT100-compatible terminals.  VT100s  have
	       no corresponding	way to modify the screensize.

       -u      This option indicates that Bourne shell commands	should be gen-
	       erated even if the user's current shell does not	appear to  use
	       Bourne shell syntax.

       -v      This  causes  resize  to	print a	version	number to the standard
	       output, and then	exit.

       Note that the Sun console escape	sequences are  recognized  by  XFree86
       xterm  and  by dtterm.  The resize program may be installed as sunsize,
       which causes makes it assume the	-s option.

       The rows	and columns arguments must appear last;	though they  are  nor-
       mally associated	with the -s option, they are parsed separately.

       /etc/termcap   for the base termcap entry to modify.

       ~/.cshrc	      user's alias for the command.

       SHELL	      Unless  overridden  by  the -c option, resize determines
		      the user's current shell by

		      o	  first	checking if $SHELL is set, and using that,

		      o	  otherwise  resize  looks  in	 the   password	  file

		      Generally	 Bourne-shell  variants	(including ksh)	do not
		      modify $SHELL, so	it is possible for resize to  be  con-
		      fused  if	 one  runs  resize from	a Bourne shell spawned
		      from a C shell.

		      After determining	the user's shell, resize   checks  the
		      shell's  name  against a table of	known shell names.  If
		      it does not find the name	in its table, resize will  use
		      C	 shell	syntax for the generated commands to set envi-
		      ronment variables.

       TERM	      Resize's generated shell command sets this to "xterm" if
		      not already set.

       TERMCAP	      Resize's	generated  shell command sets this variable on
		      systems using termcap, e.g., when	resize is linked  with
		      the termcap library rather than a	terminfo library.  The
		      latter does not provide the complete text	for a  termcap

       COLUMNS,	LINES Resize's generated shell command sets these variables on
		      systems using terminfo.	Many  applications  (including
		      the  curses  library)  use  those	 variables when	set to
		      override their screensize.

       csh(1), stty(1),	tset(1)

       Mark Vandevoorde	(MIT-Athena), Edward Moy (Berkeley)
       Thomas Dickey (
       Copyright (c) 1984, 1985	by X Consortium
       See X(1)	for a complete copyright notice.

Patch #363			  2020-12-26			     RESIZE(1)


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