Gelbooru download by tags

#!/bin/bash
# Gelbooru parser
# Download pictures from http://gelbooru.com by tags. Original script from https://pastebin.com/TXGfZFNX , modified to actually work again
# Usage: ./gelbooru.sh [tags separated by +] [folder for pictures, if left empty creats a folder named after the tags]
# Depends: bash, wget, xmlstarlet
# License: Public Domain, http://creativecommons.org/publicdomain/mark/1.0/

GR='\033[38;5;82m' ; PN='\033[38;5;171m' ; BL='\033[38;5;27m' ; RD='\033[0;31m' ; PR='\033[0;35m' ; CY='\033[0;36m' ; NC='\033[0m'
# ${}

# Check for parameters
if [[ ! $1 || "$1" == "-h" || "$1" == "--help" ]]; then
        echo -e "${CY}Gelbooru parser${NC}\nDownload pictures from http://gelbooru.com by tags\nUsage: ./${CY}gelbooru.sh${NC} ${BL}[tags separated by +]${NC} ${PR}[OutputDir, if left empty, creates a folder named after the tags]${NC}"
        exit
fi
# Is wget installed?
if [[ ! $(wget -V) ]]; then
        echo "This script requires wget. Please read the manual for your distro and install it."
        exit
fi
# Is xmlstarlet installed?
if [[ ! $(xmlstarlet --version) ]]; then
        echo "This script requires xmlstarlet. Please read the manual for your distro and install it."
        exit
fi
# Are GelBooru cookies available?
cookies=GelBooruCookies.txt
if [[ ! -f "$cookies" ]]; then
        printf "gelbooru.com%s\tFALSE%s\t/%s\tFALSE%s\t0%s\tfringeBenefits%s\tyup" > GelBooruCookies.txt
        echo -e "\nprinted cookies"
fi
# Adjust folder name
folder="$2"
if [[ ! $folder ]]; then
        folder=$(echo "$1" | sed -e 's/+/\ /')
fi
# Get count of pages and images
pagecount="0"
tags=$(echo "$1" | sed -e 's/ /%20/g')
count=$(wget -q -O - --load-cookies ../GelBooruCookies.txt "http://gelbooru.com/index.php?page=dapi&s=post&q=index&tags=$tags" | xmlstarlet sel -t -v /posts/@count[1])
# Ask for confirmation
echo -e "\nQuery${BL} \"$1\" ${NC}containing${CY} $count ${NC}Files will be saved to ${PR}"$folder"${NC}"
read -p $'press [enter] to start download, ctrl+C to cancel\x0a'
# Create folder
if [[ ! -d "$folder" ]]; then
        mkdir "$folder"
fi
cd "$folder"
# Download
while [ "$count" -ge "0" ] ; do
        url=$(wget -nv -O - --load-cookies ../GelBooruCookies.txt "http://gelbooru.com/index.php?page=dapi&s=post&q=index&limit=100&pid=$pagecount&tags=$tags" | xmlstarlet sel -t -m /posts/post/@file_url -v "." -n$)
                wget -nc $url

        let count=count-100
        let pagecount++
done