使用wget砍站供離線瀏覽
範例：只抓 http://www.adj.com.tw 之下的資料
$ wget --recursive --no-clobber --page-requisites --html-extension --convert-links --restrict-file-names=windows http://www.adj.com.tw
常用參數說明：
--recursive: download the entire Web site.
--domains example.org: don’t follow links outside website.org.
--no-parent: don’t follow links outside the directory manual/install/.
--page-requisites: get all the elements that compose the page (images, CSS and so on).
--html-extension: save files with the .html extension.
--convert-links: convert links so that they work locally, off-line.
--restrict-file-names=windows: modify filenames so that they will work in Windows as well.
--no-clobber: don’t overwrite any existing files (used in case the download is interrupted and resumed).
-e robots=off: ignore robots.txt
