Random file generator code?

Question

Does anyone have a simple shell script or c program to generate random files of a set size with random content under linux?

Answer 1

How about:

head -c SIZE /dev/random > file

Answer 2

openssl rand can be used to generate random bytes. The command is below:

openssl rand [bytes] -out [filename]

For example,openssl rand 2048 -out aaa will generate a file named aaa containing 2048 random bytes.