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       wish - Simple windowing shell


       wish ?-encoding name? ?fileName arg arg ...?


       -encoding name      Specifies the encoding of the text stored in fileName.  This option is │
                           only recognized prior to the fileName argument.

       -colormap new       Specifies that the window should have a new private  colormap  instead
                           of using the default colormap for the screen.

       -display display    Display (and screen) on which to display window.

       -geometry geometry  Initial  geometry to use for window.  If this option is specified, its
                           value is stored in the geometry global variable of  the  application's
                           Tcl interpreter.

       -name name          Use  name  as the title to be displayed in the window, and as the name
                           of the interpreter for send commands.

       -sync               Execute all X  server  commands  synchronously,  so  that  errors  are
                           reported  immediately.  This will result in much slower execution, but
                           it is useful for debugging.

       -use id             Specifies that the main window for the application is to  be  embedded
                           in  the  window whose identifier is id, instead of being created as an
                           independent toplevel window.  Id must be specified in the same way  as
                           the  value  for  the  -use option for toplevel widgets (i.e.  it has a
                           form like that returned by the winfo id command).
                           Note that on some platforms this will only work correctly if id refers
                           to a Tk frame or toplevel that has its -container option enabled.

       -visual visual      Specifies  the  visual  to use for the window.  Visual may have any of
                           the forms supported by the Tk_GetVisual procedure.

       --                  Pass all remaining arguments through to  the  script's  argv  variable
                           without  interpreting  them.   This  provides  a mechanism for passing
                           arguments such as -name to a script instead of having  wish  interpret


       Wish  is  a  simple  program consisting of the Tcl command language, the Tk toolkit, and a
       main program that reads commands from standard input or from a file.  It  creates  a  main
       window and then processes Tcl commands.  If wish is invoked with arguments, then the first
       few arguments, ?-encoding name? ?fileName?  specify  the  name  of  a  script  file,  and,
       optionally,  the  encoding  of  the  text  data  stored  in that script file.  A value for
       fileName is recognized if the appropriate argument does not start with “-”.

       If there are no arguments, or the arguments do not specify a fileName, then wish reads Tcl
       commands  interactively  from  standard input.  It will continue processing commands until
       all windows have been deleted or until end-of-file is reached on standard input.  If there
       exists  a  file  “.wishrc” in the home directory of the user, wish evaluates the file as a
       Tcl script just before reading the first command from standard input.

       If arguments to wish do specify a fileName, then fileName is treated  as  the  name  of  a
       script  file.   Wish will evaluate the script in fileName (which presumably creates a user
       interface), then it will respond to events until all windows have been deleted.   Commands
       will  not be read from standard input.  There is no automatic evaluation of “.wishrc” when
       the name of a script file is presented on the wish command line, but the script  file  can
       always source it if desired.

       Note that on Windows, the wishversion.exe program varies from the tclshversion.exe program
       in an additional important way: it does not connect to a standard Windows console  and  is
       instead  a  windowed  program. Because of this, it additionally provides access to its own
       console command.


       Wish automatically processes all of the command-line  options  described  in  the  OPTIONS
       summary  above.   Any other command-line arguments besides these are passed through to the
       application using the argc and argv variables described later.


       The name of the application, which is used for purposes such as send  commands,  is  taken
       from  the -name option, if it is specified;  otherwise it is taken from fileName, if it is
       specified, or from the command name by which wish was invoked.  In the last two cases,  if
       the  name contains a “/” character, then only the characters after the last slash are used
       as the application name.

       The class of the application, which is used for purposes such as specifying options with a
       RESOURCE_MANAGER  property  or  .Xdefaults  file,  is the same as its name except that the
       first letter is capitalized.


       Wish sets the following Tcl variables:

       argc           Contains a count of the number of arg arguments (0 if none), not  including
                      the options described above.

       argv           Contains  a  Tcl list whose elements are the arg arguments that follow a --
                      option or do not match any of the options described in  OPTIONS  above,  in
                      order, or an empty string if there are no such arguments.

       argv0          Contains  fileName  if  it  was specified.  Otherwise, contains the name by
                      which wish was invoked.

       geometry       If the -geometry option is specified,  wish  copies  its  value  into  this
                      variable.   If the variable still exists after fileName has been evaluated,
                      wish uses the value of the variable in a wm geometry  command  to  set  the
                      main window's geometry.

                      Contains  1  if  wish  is  reading commands interactively (fileName was not
                      specified and standard input is a terminal-like device), 0 otherwise.


       If you create a Tcl script in a file whose first line is
       then you can invoke the script file directly from your shell if you mark it as executable.
       This  assumes  that wish has been installed in the default location in /usr/local/bin;  if
       it is installed somewhere else then you will have to modify the above line to match.  Many
       UNIX  systems do not allow the #! line to exceed about 30 characters in length, so be sure
       that the wish executable can be accessed with a short file name.

       An even better approach is to start your script files with the following three lines:
              # the next line restarts using wish \
              exec wish "$0" ${1+"$@"}
       This approach has three advantages over the approach in the  previous  paragraph.   First,
       the location of the wish binary does not have to be hard-wired into the script:  it can be
       anywhere in your shell search path.  Second, it gets around  the  30-character  file  name
       limit  in  the previous approach.  Third, this approach will work even if wish is itself a
       shell script (this is done on some systems in order to handle  multiple  architectures  or
       operating  systems:   the  wish script selects one of several binaries to run).  The three
       lines cause both sh and wish to process the script, but the exec is only executed  by  sh.
       sh  processes  the  script first;  it treats the second line as a comment and executes the
       third line.  The exec statement cause the shell to stop processing and instead to start up
       wish  to  reprocess  the entire script.  When wish starts up, it treats all three lines as
       comments, since the backslash at the end of the second line causes the third  line  to  be
       treated as part of the comment on the second line.

       The end of a script file may be marked either by the physical end of the medium, or by the
       character, “\032” (“\u001a”, control-Z).  If this character is present in  the  file,  the
       wish  application  will  read  text up to but not including the character.  An application
       that requires this character in the file may encode it as “\032”, “\x1a”, or “\u001a”;  or
       may generate it by use of commands such as format or binary.


       When  wish  is  invoked interactively it normally prompts for each command with “% ”.  You
       can change the prompt by setting the variables tcl_prompt1 and tcl_prompt2.   If  variable
       tcl_prompt1  exists  then  it must consist of a Tcl script to output a prompt;  instead of
       outputting  a  prompt  wish  will  evaluate  the  script  in  tcl_prompt1.   The  variable
       tcl_prompt2  is  used  in a similar way when a newline is typed but the current command is
       not yet complete; if tcl_prompt2 is not set  then  no  prompt  is  output  for  incomplete


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