using rot13 and tr command for having an encrypted email address

Question

I have read many tutorials on the internet about the usage of the \'tr\' command. However, I am not able to understand how to encrypt an email address with a shell script sh

Answer 1

Ruby(1.9+)

$ ruby -ne 'print $_.tr( "A-Za-z", "N-ZA-Mn-za-m") ' file

Python

$ echo "test" | python -c 'import sys; print sys.stdin.read().encode("rot13")'