common2dlf - convert Common Log Format web server log files to www DLF
common2dlf converts Common Log Format web server log files to the www
DLF. Common Log Format is a standard log format that was originally
implemented in the CERN httpd web server but that now supported
nowadays by most web servers. Apache, IIS, Boa and PureFTPD can be
configured to log in that format.
If the file argument is missing, STDIN will get parsed. DLF will be
printed on STDOUT.
COMMON LOG FORMAT
The Common Log Format has the following format:
remotehost rfc931 authuser [date] "request" status bytes
where the fields have the following meaning:
The host that made the request. Can be an IP or a hostname.
The result of an ident lookup on the host. This is usually never
The authenticated username.
The timestamp of the request.
The first line of the request. Usually in the format "method
See also RFC 2616, section 5.1.
The result status of the request. i.e. 200, 301, 404, 500.
The size of the request sent to the client.
127.0.01 - - [11/03/2001 12:12:01 -0400] "GET / HTTP/1.0" 200 513
dsl1.myprovider.com - francis [11/03/2001 12:14:01 -0400] "GET /secret/ HTTP/1.0" 200 1256
To process a log as produced in the common logformat:
$ lr_run common2dlf < common.log
common2dlf will be rarely used on its own, but is more likely called by
$ lr_log2report common < /var/log/httpd/common.log
combined(2), modgzip2dlf(1), referer2dlf(1)
Joost van Baal <firstname.lastname@example.org>, Francis J. Lacoste
<email@example.com> and Egon Willighagen <firstname.lastname@example.org>,
based on an idea by Edwin Groothuis
$Id: common2dlf.in,v 1.15 2006/07/23 13:16:36 vanbaal Exp $
Copyright (C) 2000, 2001 Stichting LogReport Foundation
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