Oct 12, 2018

[HDGEM] How to create a file of random data

The following commands create a file that contains exactly 3 MiB (3 x 1024 x 1024 bytes) of random data.

$ dd if=/dev/urandom of=largefile bs=3145728 count=1  1+0 records in  1+0 records out  3145728 bytes (3.1 MB) copied, 0.205813 s, 15.3 MB/s

dd is a utility that copies a number of bytes from an input file to an output file. The above example uses the device file /dev/urandom as a source of random data.

Posted By Blogger to HDGEM at 1/31/2017 01:44:00 PM

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