Make a unique filesystem path, without creating the file

[Random832]

On Mon, Feb 22, 2016, at 14:32, Marko Rauhamaa wrote:
> urandom() is not quite random and so should not be considered
> cryptographically airtight.
> 
> Under Linux, /dev/random is the way to go when strong security is
> needed. Note that /dev/random is a scarce resource on ordinary systems.

http://www.2uo.de/myths-about-urandom/