http://invisible-island.net/xterm/


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:

       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
           /etc/passwd.

       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
           escape 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 writes the shell command for setting  the  environ-
           ment 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 `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


OPTIONS

       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 is not /bin/csh.

       -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
               itself using those values.

               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.

               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 is not /bin/sh.

       -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.


FILES

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

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


ENVIRONMENT

       SHELL          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.

       TERM           Resize sets this to "xterm-new" if not already set.

       TERMCAP        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.

       COLUMNS, LINES 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.

Patch #320                        2015-08-28                         RESIZE(1)