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I have a shell script called boot.sh on an Ngnix server

I am trying to call it via PHP, but I don't think I have permissions.

How can I give www-data permission to run boot.sh - and only boot.sh

When trying sudo chown or sudo chgrp I am getting Operation Not Permitted

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Post actual commands and their outputs, plus full paths please –  fukawi2 Nov 10 '13 at 23:53
Is it necessary to run boot.sh as root? What does the script actually do? If the script does not necessarily needs root execution privileges, it's good to simply fix permission of the script for www-data. –  toxboi Nov 11 '13 at 14:27
I've done lots of shell execution from webservers (including nginx) and the process executes as whatever user the server is shown as owning by ps. Look for password-less sudo. I've done it a few times and there are 2 or 3 ways to pull it off (all hacks). If anything cheat and copy boot.sh where you can get to it? –  Chris K Jan 1 at 10:02
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1 Answer

Edit your sudoers file and add the following. Where user is the username it will be run under.

www-data ALL=(user) NOPASSWD: /path/to/program/or/script

The use the following command in PHP.

system("sudo -u user /path/to/program/or/script");

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tried with user phpuser. didn't seem to work. tried running the command directly from command line and got: sudo: unknown user: phpuser –  K2xL Nov 11 '13 at 13:11
It has to be a real user on the system, use the user which you have access to the command line –  Alex Nov 11 '13 at 13:47
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