01-12-2006
renaming 50k files, whats the best way?
Because I am not creative, I did this:
find . -type f -name '*.GIF'|cut -d'/' -f2|awk -F. '{print "mv "$1".GIF "$1".gif --reply=yes"}' > case.sh
Then ran the case.sh - I was wondering if you guys could come up with something more efficient? Or even limit CPU useage? It is killing my poor ext3 linux server.
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LEARN ABOUT PHP
imagecreatefromgif
IMAGECREATEFROMGIF(3) 1 IMAGECREATEFROMGIF(3)
imagecreatefromgif - Create a new image from file or URL
SYNOPSIS
resource imagecreatefromgif (string $filename)
DESCRIPTION
imagecreatefromgif(3) returns an image identifier representing the image obtained from the given filename.
Tip
A URL can be used as a filename with this function if the fopen wrappers have been enabled. See fopen(3) for more details on how to
specify the filename. See the "Supported Protocols and Wrappers" for links to information about what abilities the various wrappers
have, notes on their usage, and information on any predefined variables they may provide.
PARAMETERS
o $filename
- Path to the GIF image.
RETURN VALUES
Returns an image resource identifier on success, FALSE on errors.
EXAMPLES
Example #1
Example to handle an error during loading of a GIF
<?php
function LoadGif($imgname)
{
/* Attempt to open */
$im = @imagecreatefromgif($imgname);
/* See if it failed */
if(!$im)
{
/* Create a blank image */
$im = imagecreatetruecolor (150, 30);
$bgc = imagecolorallocate ($im, 255, 255, 255);
$tc = imagecolorallocate ($im, 0, 0, 0);
imagefilledrectangle ($im, 0, 0, 150, 30, $bgc);
/* Output an error message */
imagestring ($im, 1, 5, 5, 'Error loading ' . $imgname, $tc);
}
return $im;
}
header('Content-Type: image/gif');
$img = LoadGif('bogus.image');
imagegif($img);
imagedestroy($img);
?>
The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example : Example to handle an error during
loading of a GIF
NOTES
Note
GIF support was removed from the GD library in Version 1.6, and added back in Version 2.0.28. This function is not available
between these versions.
Note
When reading animated GIF files into memory, only the first frame is returned in the image resource pointer.
PHP Documentation Group IMAGECREATEFROMGIF(3)