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Grab 4 bytes from www.random.org over ssl and format them as an integer
There are 2 alternatives - vote for the best!
works at least in bash. returns integer in range 0-32767. range is not as good, but for lots of cases it's good enough.
Reads 4 bytes from the random device and formats them as unsigned integer between 0 and 2^32-1.
If you can do better, submit your command here.
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