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=={{header|PureBasic}}==
PureBasic is procedural and any code which is not part of a procedure is considered 'main' code. This code also does not use any explicit syntax (i.e. a 'main' module) to cause it to execute and it always executes first.
=={{header|Racket}}==
Racket can be configured to run a REPL, run a main function, or just run top-level expressions. A main function can be run by executing <tt>racket -tm program.rkt</tt>.
<lang lisp>
#lang racket
(provide main)
(define (main)
(displayln "Hello World!"))
</lang>
=={{header|REXX}}==
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