출처
http://dry-kiss.blogspot.com/2012/04/curl.html
https://stackoverflow.com/questions/12399087/curl-to-access-a-page-that-requires-a-login-from-a-different-page
https://okky.kr/article/389113
쿠키를 이용해서 로그인 해야지 접근 할 수 있는 페이지에 접근이 가능 함
curl --user user:pass --cookie-jar ./somefile https://xyz.com/a
curl -c cookie.txt -d "LoginName=someuser" -d "password=somepass" https://oursite/a
curl -b cookie.txt https://oursite/b