Extended Log Format

Extended Log Format (ELF) is a standardized text file format that is used by web servers when generating log files. In comparison to the Common Log Format (CLF), ELF provides more information and flexibility.

Example
00:34:23 GET /foo/bar.html 12:21:16 GET /foo/bar.html 12:45:52 GET /foo/bar.html 12:57:34 GET /foo/bar.html
 * 1) Version: 1.0
 * 2) Date: 12-Jan-1996 00:00:00
 * 3) Fields: time cs-method cs-uri