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FIND(<haystack>, <needle>)
      returns a number

Locates the blank-delimited word or words <needle> within the string
<haystack> and returns the word position of the first match, or 0 if there
is no match.

The search is case sensitive.

   Examples:
         say find('Tied to Godot?','dot');      >>> 0
         say find('Tied to Godot?','to');       >>> 2

   Also see 
            
            

In some implementations of REXX, this function is called WORDPOS() and
takes arguments in the reverse order.

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