Solved

Pass command directly to OS

Posted on 2006-11-28
7
698 Views
Last Modified: 2008-01-09
Hi...

I want to pass a command direct to the terminal.  In particular this command:

     cat /proc/cpuinfo | grep 'model name' | sed -e 's/.*: //'

and then have it displayed nice and neatly on the page.  

Currently my code looks like this:
    $cmd = "cat /proc/cpuinfo | grep 'model name' | sed -e 's/.*: //' ";
    shell_exec($cmd);

But instead of running I get an error telling me:
    Warning: shell_exec() [function.shell-exec]: Cannot execute using backquotes in Safe Mode in /var/www/web3/web/network.php on line 4

Does anyone know a way for me to get command to run? I've also tried to echo exec() and popen(), but exec gave me no errors and no output... whilst popen gave me the cryptic output "Resource id #2".

Thanks in advance.
0
Comment
Question by:Mr_Lenehan
  • 4
  • 3
7 Comments
 
LVL 29

Expert Comment

by:TeRReF
ID: 18030491
PHP runs in safe_mode. This means that there's only 1 dir that's enabled to run programs from.
Look for that dir with this command:
phpinfo();

(put it in a seperate file and run it...)
0
 
LVL 2

Author Comment

by:Mr_Lenehan
ID: 18030548
Ran phpinfo and found the following:

Directive                       Local             Master
safe_mode                   On                     Off
safe_mode_exec_dir      no value      no value

I take it the safe mode options are configured in php.ini?
0
 
LVL 29

Accepted Solution

by:
TeRReF earned 500 total points
ID: 18030560
Yes, that's right.
The directives are already there, find them and uncomment/ define them...
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 2

Author Comment

by:Mr_Lenehan
ID: 18030567
Okay, answered that bit myself. How do I restart php on unix?
0
 
LVL 29

Expert Comment

by:TeRReF
ID: 18030695
You restart Apache, become root and type this command:
apachectl stop && apachectl start
0
 
LVL 2

Author Comment

by:Mr_Lenehan
ID: 18030710
cheers
0
 
LVL 29

Expert Comment

by:TeRReF
ID: 18030716
You're welcome :)
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Author Note: Since this E-E article was originally written, years ago, formal testing has come into common use in the world of PHP.  PHPUnit (http://en.wikipedia.org/wiki/PHPUnit) and similar technologies have enjoyed wide adoption, making it possib…
I imagine that there are some, like me, who require a way of getting currency exchange rates for implementation in web project from time to time, so I thought I would share a solution that I have developed for this purpose. It turns out that Yaho…
The viewer will learn how to dynamically set the form action using jQuery.
The viewer will learn how to create and use a small PHP class to apply a watermark to an image. This video shows the viewer the setup for the PHP watermark as well as important coding language. Continue to Part 2 to learn the core code used in creat…

911 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

28 Experts available now in Live!

Get 1:1 Help Now