[SOLVED] Executing bash from php.

Question

Hey guys,
So I have this bash script in /opt/scripts.  So this script runs perfectly now by asking for two inputs from the user and doing a variety of script installs.  However now i'm being asked to make a php page that will work with this script.  So my question is is there better way to execute a root script from a user level php page.  For instance I am testing the php page with this.
if($submitted){
                // Show em for troubleshooting reasons
                echo "domain: $d  |  name: $n";
So when I go to the page it shows and put in inputs it will echo the proper variables.  So I know it's assigning the variables correctly.  I'm just not 100% on how I can pass them from a php environment into a bash environment. I am trying to use something like this.
<?php
  if (!empty($_POST)) {
    exec('sh /path/to/shell ' . $_POST['var1'] . ' '  . $_POST['var2'] . ' '  . $_POST['var3']);
?>
However it doesn't seem to want to execute?
Last edited by hauntedbyshadow (2014-07-21 12:41:07)

Answer 1

First, thanks Trilby I didn't realize there were 'code tags' till after the post, so i'll use them from now on... so there are no actual error logs because it's not on a development server just yet.  As of now i'm just doing testing on seeing how it's even done. 
echo 'sh /path/to/shell ' . $_POST['var1'] . ' ' . $_POST['var2'] . ' ' . $_POST['var3'];
Did actually work however still unsure of if it will execute properly when using a root level script.  Should I be setting the script to user level, or having the php page fire in a sudo format or something.  I'm not entirely sure.