This Spider crawls through XKCD website and download all the comics and stores in image folder.
XKCD is a webcomic created by American author Randall Munroe.The subject matter of the comic varies from statements on life and love to mathematical, programming, and scientific in-jokes. Some strips feature simple humor or pop-culture references. Although it has a cast of stick figures,the comic occasionally features landscapes, graphs and charts, and intricate mathematical patterns such as fractals.New cartoons are added three times a week, on Mondays, Wednesdays, and Fridays.
You can run scripts and download comics without having duplications.