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ruby [--copyright] [--version] [-Sacdlnpswvy] [-0[octal]] [-C directory] [-F pattern] [-I directory] [-K c] [-T[level]] [-e command] [-i[extension]] [-r library] [-x[directory]] [--] [program_file] [argument ...]
Most of the options have pretty the same meaning as in Perl. Except for --copyright, -C, -K, -r, -y.
There is a separate program on Windows, rubyw, to run graphical applications without openning a console window.
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