print(...) public

Prints each object in turn to $stdout. If the output field separator ($,) is not nil, its contents will appear between each field. If the output record separator ($\) is not nil, it will be appended to the output. If no arguments are given, prints $_. Objects that aren’t strings will be converted by calling their to_s method.

   print "cat", [1,2,3], 99, "\n"
   $, = ", "
   $\ = "\n"
   print "cat", [1,2,3], 99


   cat, 1, 2, 3, 99
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October 11, 2010
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output is buffered and will not appear until flush

Output is buffered on most operating systems. To override this behavior, force the stdout or other io to sync

STDOUT.sync = true