#!bin/bash

if [ $# -ne 2 ]; then
	echo "Please provide 2 files as arguments"
	exit 1
fi

if [ ! -f "$1" ] || [ ! -f "$2" ]; then
	echo "Both arguments must be files"
	exit 1
fi

print() {
	file="$1"
	echo "$file"
	head -n 2 "$file"
}

print "$1"
print "$2"

echo "Total number of characters is $(cat "$1" "$2" | wc -c)."