INTRO TO UNIX QUESTIONS.

Please, Answers only! Thanks.

1. Write a shell script to validate password strength. Here are a few assumptions for the password string.

-Length should be a minimum of 8 characters.

-Contain both alphabet and number.

-Include both the small and capital case letters.

-If the password doesnt comply to any of the above conditions, then the script should report it as a Weak Password otherwise display a Strong Password

2. Please explain what the following shell script is doing

#!/bin/bash dir=$1 for file in `ls $1/*` do mv $file $file.new done