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How can I populate a file with random data? How can I create a new file and fill it with 1 Gigabyte worth of random data? I need this to test some software. 100 would prefer to use dev random or devrandom. random 26 share edit flag asked Mar 7 ’12 at 0:26 Stefan Lasiewski 8,927 20 61 79 38 Open vi with vi -w randomfile and ask someone who’s never seen vi to exit the program. 😉 – Wildcard Jun 8 ’16 at 3:34 add a comment start a bounty