Linux, MySQL, PhP, Perl... » random generator http://linux.bgsnow.com Fri, 18 Jun 2010 16:30:03 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 Generate random string in Linux http://linux.bgsnow.com/generate-random-string-in-linux.php http://linux.bgsnow.com/generate-random-string-in-linux.php#comments Thu, 08 Oct 2009 08:01:57 +0000 admin http://linux.bgsnow.com/?p=162 You probably know about /dev/random and /dev/urandom when it comes to generating a random string. Usually the problem is that these devices are not directly usable for ascii generators. This means that little conversion is necessary and here is one way to do it:

$ dd if=/dev/urandom count=128 bs=1 2>&1 | md5sum | cut -b-10

This will generate a random string of 10 symbols. In order to change its length just change the last number from 10.

There are also some ready to use utilities such as makepasswd which are available on Ubuntu and other distributions. You can generate 10 characters with makepasswd as follows:

$ makepasswd --char=10

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