ceaser-cypher.txt

Simple shell script to break ceaser cypher:

Say we have a alphanumeric cyphered using Rot13 :

Eg:

5Gr8L4qetPEsPk8htqjhRK8XSP6x2RHh

In order to break this, all we need is a simple tr construct

$ echo 5Gr8L4qetPEsPk8htqjhRK8XSP6x2RHh | tr 'N-Z' 'A-M' | tr 'A-M' 'N-Z' | tr 'n-z' 'a-m' | tr 'a-m' 'n-z'

This will give u the decyphered stuff.

5Tr8Y4qrtPRsPx8utqwuRX8XSP6x2RUu

~ Happy hacking!