6 Replies Latest reply: Oct 9, 2009 7:41 AM by rudi_e
Hudson Valley Media Solutions Level 1 Level 1 (60 points)
I noticed a new application when right clicking on an item to open, I am given the option for Wish 8.5.7 or 8.4.19. I never installed this myself. Is this a new app with 10.6?



MacBook Pro 2.5 Ghz. 4g, 512mb 8600, Mac OS X (10.5.6), Get Well Steve!
  • clintbradford Level 3 Level 3 (905 points)
    Wish is a simple windowing shell. I have absolutely no idea when it is used, nor why it exists. But perform a Spotlight search, Show All, and there it is.

    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 no arguments, or with a first argument that
    starts with ``-'', then it reads Tcl commands interactively from stan-dard standard
    dard 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 com-mand command
    mand from standard input.

    If wish is invoked with an initial fileName argument, 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.

    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; other-wise otherwise
    wise 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 speci-fying specifying
    fying 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 don't 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, con-tains contains
    tains 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 ter-minal-like terminal-like
    minal-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's installed somewhere
    else then you'll 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 follow-ing following
    ing three lines:
    # the next line restarts using wish \
    exec wish "$0" "$@"
    This approach has three advantages over the approach in the previous
    paragraph. First, the location of the wish binary doesn't 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 |

    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 isn't yet complete; if tcl_prompt2 isn't set then no
    prompt is output for incomplete commands.

    shell, toolkit
  • rudi_e Level 1 Level 1 (0 points)
    Why does it appear in Snow Lep?

    It wasnt there in Lep, and it doesnt open files anyway...
  • KJK555 Level 4 Level 4 (2,895 points)
    It is part of Leopard (10.5.x) also. Why it suddenly appears to the User in 10.6, I don't know. It hasn't
    appeared yet in my installation. Perhaps you guys are using a program that invokes the X Window
    System (X11). Here is a little more general info about it:


    Kj ♘
  • rudi_e Level 1 Level 1 (0 points)
  • KJK555 Level 4 Level 4 (2,895 points)
    Text Mate is a developer's tool that uses various unix scripting technologies such as Wish Shell.
    I don't know if Text Mate specifically uses Wish Shell for anything, but it may write code into the
    file headers in such a way that triggers the Wish Shell.app to respond and ask if it should open the
    file for you.
    Snow Leopard's Wish.app (Wish Shell.app) is located here:

    Kj ♘
  • rudi_e Level 1 Level 1 (0 points)
    Ah, that's probably it! I was thinking so too