Shell tool for downloading all apple latest sample codes automatically

samplecode_dl.sh

#!/bin/bash
# set -x
JSON='library.json'
export HOME='https://developer.apple.com/library/content'
# curl -s -o ${JSON} ${HOME}/navigation/library.json

function dojob()
{
	# echo "$3.date:${1} url:${2}"
	location=${HOME}/$(echo ${2} | sed 's/..\///' | awk -F'/Introduction' '{print $1}')
	dir=$(echo ${1} | awk -F'-' '{print $1}')
	if [ ! -d "${dir}" ]
	then
		mkdir -pv ${dir}
	fi
	url=${location}/$(curl -s ${location}/book.json | jq -r '.sampleCode')
	wget ${url} -O ${dir}/$(echo ${url} | awk -F'/' '{print $NF}')
}

export -f dojob

cat ${JSON} | jq -r '.documents|map([.[3],.[9]])|map(select(.[2]|contains("samplecode"))|join("|"))|join("\n")' | sort -r | awk -F'|' '{
	system("dojob "$1" "$2" "NR)
}'