09-16-2002
deleting double entries in a log file
Hi Folks,
I have a apache log file that has double entries (however not all lines appear twice).
How can I delete automatically the first line of a double entry?
Your help is greatly appreciated.
Thanks,
Klaus
Here is what the log file looks like
217.81.190.164 - - [28/Aug/2002:00:16:33 +0200] "GET /rmg/w4w/1000689.htm HTTP/1.1" 200 2409
217.81.190.164 - - [28/Aug/2002:00:16:33 +0200] "GET /rmg/w4w/1000689.htm HTTP/1.1" 200 2409 "http://www.opusforum.org/rmg/w4w/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)"
217.81.190.164 - - [28/Aug/2002:00:17:01 +0200] "GET /rmg/vec/ HTTP/1.1" 200 2631
217.81.190.164 - - [28/Aug/2002:00:17:01 +0200] "GET /rmg/vec/ HTTP/1.1" 200 2631 "http://www.opusforum.org/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)"
217.81.190.164 - - [28/Aug/2002:00:17:03 +0200] "GET /rmg/vec/1000868.htm HTTP/1.1" 200 2386
217.81.190.164 - - [28/Aug/2002:00:17:03 +0200] "GET /rmg/vec/1000868.htm HTTP/1.1" 200 2386 "http://www.opusforum.org/rmg/vec/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)"
213.23.52.237 - - [28/Aug/2002:00:17:10 +0200] "GET / HTTP/1.0" 200 16327
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LEARN ABOUT PHP
imagesetpixel
IMAGESETPIXEL(3) 1 IMAGESETPIXEL(3)
imagesetpixel - Set a single pixel
SYNOPSIS
bool imagesetpixel (resource $image, int $x, int $y, int $color)
DESCRIPTION
imagesetpixel(3) draws a pixel at the specified coordinate.
PARAMETERS
o $
image -An image resource, returned by one of the image creation functions, such as imagecreatetruecolor(3).
o $x
- x-coordinate.
o $y
- y-coordinate.
o $color
- A color identifier created with imagecolorallocate(3).
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
imagesetpixel(3) example
A random drawing that ends with a regular picture.
<?php
$x = 200;
$y = 200;
$gd = imagecreatetruecolor($x, $y);
$corners[0] = array('x' => 100, 'y' => 10);
$corners[1] = array('x' => 0, 'y' => 190);
$corners[2] = array('x' => 200, 'y' => 190);
$red = imagecolorallocate($gd, 255, 0, 0);
for ($i = 0; $i < 100000; $i++) {
imagesetpixel($gd, round($x),round($y), $red);
$a = rand(0, 2);
$x = ($x + $corners[$a]['x']) / 2;
$y = ($y + $corners[$a]['y']) / 2;
}
header('Content-Type: image/png');
imagepng($gd);
?>
The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example : imagesetpixel()
SEE ALSO
imagecreatetruecolor(3), imagecolorallocate(3), imagecolorat(3).
PHP Documentation Group IMAGESETPIXEL(3)