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[help]Delete or replace text in multiple file and multiple directory

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Top Forums Shell Programming and Scripting [help]Delete or replace text in multiple file and multiple directory
# 15  
Old 06-05-2009
Quote:
Originally Posted by Nejc
OK. Obviously this script doesn't do, what I would like, since it purged all my files. No harm done anyway, I did it on purpose on a testing website which was also spamed. Smilie

Before I ran the script, I also tested only with sed using this code:

Code:
sed "s:<?php echo '<script language='JavaScript'>function e590206b977().*<\/script>'; ?>::" index.php > index.temp


Surely it won't do anything, since you removed two crucial backslashes before the closing tag \/script>. It won't work without them:

Code:
sed "s:<?php echo '<script language='JavaScript'>function e590206b977().*<\\\/script>'; ?>::" index.php > index.temp


Quote:
I can say, that the above command of sed, just copies the file index.php to index.temp. Nothing else.
There is one thing for sure, every single character counts, if you miss one the whole code will fail. Please copy/paste when testing.

I tested with your spam sample, and it worked fine; obviously, if you have another spam string, different from the one above, the code needs again modifications.

The only important point about sed's pattern is the greedy regex .* , it'll match the whole portion of the string from the end of ...>function e590206b977() pattern up to the beginning of <\/script> spam's closing tag.
# 16  
Old 06-05-2009
It still won't go. I have a normal index.php file added at the end of the file:

Code:
...
JDEBUG ? $_PROFILER->mark('afterRender') : null;
$mainframe->triggerEvent('onAfterRender');

/**
 * RETURN THE RESPONSE
 */
echo JResponse::toString($mainframe->getCfg('gzip'));
<?php echo '<script language='JavaScript'>function e590206b977() jozejsadf</script>'; ?>

In shell I do, for now even without that function part:

Code:
sed "s:<?php echo '<script language='JavaScript'>.*<\\\/script>'; ?>::" index.php > index.temp

Nothing happens. index.temp gets created with the same content as index.php.

Below is a copy/paste of the command:

Code:
demo@soncek:~/demo2$ sed "s:<?php echo '<script language='JavaScript'>.*<\\\/script>'; ?>::" index.php > index.temp

Last edited by Nejc; 06-05-2009 at 11:42 AM.. Reason: Pasted the command
# 17  
Old 06-05-2009
Quote:
Originally Posted by Nejc
...
Nothing happens. index.temp gets created with the same content as index.php.

Below is a copy/paste of the command:

Code:
demo@soncek:~/demo2$ sed "s:<?php echo '<script language='JavaScript'>.*<\\\/script>'; ?>::" index.php > index.temp

I see ..., the previous code ( 3 backslashes ) worked fine in your previous sample, the code will work with the current sample if you remove only one \ .
Anyway to have predictable results, you'd be better off of getting rid of the <\/ pattern from the closing tag.

I get the desired output for all samples with the following code ( note the differences ):

Code:
sed "s:<?php echo '<script language='JavaScript'>.*script>'; ?>::" filename

Tested OK in Solaris and Cygwin (GNU sed).
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