#!/bin/sh
input=$1
type=$2
# This is a function:
# It checks if the user has input data.
check() {
if [ -n "$1" ]; then
echo
else
echo "Please enter URL/File type.";
exit 0
fi
}
check $input
check $type
curl -s $input | grep $type | sed -n 's/.*href="\([^"]*\)".*/\1/p' | xargs -I {} curl -LO "$input/{}"