osx man page for bell

bell(n) 						       Tk Built-In Commands							   bell(n)

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NAME
       bell - Ring a display's bell

SYNOPSIS
       bell ?-displayof window? ?-nice?
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DESCRIPTION
       This command rings the bell on the display for window and returns an empty string.  If the -displayof option is omitted, the display of the
       application's main window is used by default.  The command uses the current bell-related settings for the display, which  may  be  modified
       with programs such as xset.

       If  -nice is not specified, this command also resets the screen saver for the screen.  Some screen savers will ignore this, but others will
       reset so that the screen becomes visible again.

KEYWORDS
       beep, bell, ring

Tk									8.4								   bell(n)