| RESIZE(1) | X Window System | RESIZE(1) | 
NAME
 resize - set environment and terminal settings to current xterm window size
SYNOPSIS
 resize [  -v | -u | -c ] [ -s [ row col ] ]
DESCRIPTION
 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:
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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 /etc/passwd.
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then it decides whether to use Bourne shell syntax or C-Shell syntax. It uses a built-in table of known shells, which can be overridden by the  -u and -c options.
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then resize asks the operating system for the terminal settings. This is the same information which can be manipulated using  stty.
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then resize asks the terminal for its size in characters. Depending on whether the " -s option is given,  resize uses a different escape sequence to ask for this information.
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at this point, resize attempts to update the terminal settings to reflect the terminal window's size in pixels:
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if the -s option is used,  resize then asks the terminal for its size in pixels.
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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.
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in either case, the updated terminal settings are done using a different system call than used for  stty.
 
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then resize updates the terminal settings to reflect any altered values such as its size in rows or columns. This affects the values shown by  stty.
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finally, resize writes the shell command for setting the environment variables to the standard output.
 
EXAMPLES
 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 ̀resizè'
 
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 temporary file and then read it back in with the ``.'' command:
 
        $  resize > /tmp/out
        $  . /tmp/out
 
OPTIONS
 The following options may be used with  
resize:
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-c
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This option indicates that C shell commands should be generated even if the user's current shell is not  /bin/csh.
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-s [ rows  columns]
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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 itself using those values.
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Both of the escape sequences used for this option (first to obtain 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.
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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.
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-u
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This option indicates that Bourne shell commands should be generated even if the user's current shell is not  /bin/sh.
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-v
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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 normally associated with the  -s option, they are parsed separately.
 
FILES
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/etc/termcap
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for the base termcap entry to modify.
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~/.cshrc
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user's alias for the command.
 
ENVIRONMENT
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SHELL
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Resize determines the user's current shell by first checking if  $SHELL is set, and using that. Otherwise it determines the user's shell by looking in the password file (/etc/passwd). Generally Bourne-shell variants (including  ksh) do not modify  $SHELL, so it is possible for  resize to be confused if one runs  resize from a Bourne shell spawned from a C shell.
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TERM
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Resize sets this to "__default_termname__" if not already set.
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TERMCAP
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Resize 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 entry.
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COLUMNS, LINES
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Resize sets these variables on systems using terminfo. Many applications (including the curses library) use those variables when set to override their screensize.
 
SEE ALSO
 use_env(3)
 
csh(1), stty(1), tset(1)
 
xterm(1)
 
AUTHORS
 Mark Vandevoorde (MIT-Athena), Edward Moy (Berkeley)
 
Thomas Dickey (invisible-island.net).
 
Copyright (c) 1984, 1985 by X Consortium
 
See 
X(7) for a complete copyright notice.