cURL is a command line tool for processing URLs; in the form of an http://, https: or ftp://. Often used in data manipulation and transfers. curl will retrieve the resource passed as an argument and print the contents to standard output, or to the file passed to the -o option. The resource can be in the form of an http://, https: or ftp: style URL. —- Cheat Sheet —- Check gmail Check HTTP Headers Get a FTP directory listing Get a HTTP Basic authenticated page Perform imap queries using Curl Post to a page Read a HTTP URL Read a HTTPS URL Read an IP address Reading a URL with variable GET parameters Read a web page and store it in a file Referer & User Agent Track Web Redirects Upload a file with FTP —-