on PasteBin: https://pastebin.com/6wfzR9NE
#!/bin/bash
nanos=`date +%N`;
secIGSO=`date +%s`
urandomseek=`echo "$secIGSO - $nanos" |bc`
echo "\tsince1970-01-01.secs:\t$secIGSO - current.nanos:\t$nanos = urandomseek:\t$urandomseek" ;
echo "exec od -j $urandomseek -N `date +%S` /dev/urandom " ;
od -j $randomseek -N `date +%S` /dev/urandom