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Produce a text file that prints "Hello World!" in as many programming languages as possible when compiled/interpreted, while also being as short as possible.

The score for your submission is calculated as C / 2 ^ ((L - 1) / 4), where "C" is the length of the text file in characters and "L" is the number of languages that the program is valid in. Lowest score wins, of course.

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This question is similar to this other one, but in this case, you can share "Hello World" among some languages if you wish. – Joe Z. Feb 15 at 18:52

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up vote 3 down vote accepted 
print("Hello World!")

Works in at least Julia, Perl, PHP, Python2, Python3, Qbasic, R, Ruby ...

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It also works in R and Julia (and surely in many other languages). – Sven Hohenstein Feb 19 at 7:20
works in PHP too – jdstankosky Mar 8 at 14:39
This print() syntax is also valid in Transact-SQL. pastebin.com/is2mqRJC – manatwork Mar 9 at 16:03
@jdstankosky, that exact code not works in PHP. pastebin.com/9x6HactK – manatwork Mar 9 at 16:17
Kind of forcing the limits, but we can say it works in JavaScript too, as some command line interpreters provide print() function for outputting. pastebin.com/6fXtgFER – manatwork Mar 9 at 18:14
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up vote 1 down vote 
'Hello World!'

Runs in several scripting languages, including PHP, GolfScript, APL, ...

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Also AppleScript and Javascript :) – tomsmeding Feb 21 at 19:03
Won't Javascript include the quotes? – Joe Z. Feb 22 at 4:18

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