#!/bin/bash
# Example script which compares strings against patterns
echo -n "Enter a string: "
read s1

#Test 1
if [[ $s1 == *[A-za-z]* ]]; then
	echo String s1 has an alphabetic character in it
fi

#Test 2
if [[ $s1 != *[A-za-z]* ]]; then
        echo String s1 does not contain an alphabetic character
fi

#Test 3
if [[ $s1 == [nN]* ]]; then
	echo String s1 begins with N or n
fi