Revise paste Bulk Download Pastebin Files

#!/bin/bash

if [ $# -lt 1 ]
then
    echo "Useage: $0 <user> <number of Pages>"
    echo "Example: $0 metalx1000 2"
    exit 0
fi

user="$1"
if [ $# -lt 2 ]
then
    let pages=1
    echo "Downloading $pages of ${user}'s pastes."
else 
    let pages=$2
    echo "Downloading $pages of ${user}'s pastes."
fi

for x in $(seq 1 $pages)
do
    echo "Downloading Page $x"
    wget -q "http://pastebin.com/u/$user/$x" -O-|grep "t.gif"|grep "Public paste"|while read line
    do
        id="$(echo $line|cut -d\" -f10|cut -d\/ -f2)"
        title="$(echo $line|cut -d\" -f11|cut -d\> -f2|cut -d\< -f1|cut -d\. -f1)"
        url="http://pastebin.com/raw.php?i=${id}"
        echo "Downloading $title..."
        
        wget -q -c "$url" -O "$title"
    
        type="$(head -n1 "$title")"

if [[ $type == *bash* ]]
        then
            mv "$title" "${title}.sh"
        elif [[ $type == *python* ]]
        then
            mv "$title" "${title}.py"
        fi
        
    done 
done

dos2unix *