Write file containing a shell script?

[johnkelly]

Hi, I am trying to write a file that contains a shell script. The file writes to the server but when I try to execute it it fails with a command not found error. But if I copy and paste the files contents into a new text file using Textpad on my PC and upload it to the same directory it works?! It is not related to permissions as both files are 777 and I am root? The only difference I could tell is when I compare the files in Textpad although the contents are identical, the failed file is slightly larger and has a file type of "Netscape" in the File Properties while the other has a file type of "PC"? Any ideas?

[van__]

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the files are 777 and I am root?

the files are too powerful and PHP is nobody.
I'd say chmod those puppies to 755 and chown/chgrp nobody.
PHP will be able to read/write and exec, but no one else.

But what really bothers me here is the concept of a shell script that is updated via a web browser interface...
Sounds like your just inviting people to come on in and write their own hacks on your server.

Also to exec, you need to handle it like a script, it's not a binary ya know.
<? exec("./myfile.php"); ?>