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Perl system() to run a script


 
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# 8  
Old 08-27-2013
the fact that it works outside the perl script with apache user, I believe it should work inside the script as well. May be try pushing the STDERR to the file that you are writing and check if the file has any pointers to error. Try making file to /tmp/test.css to ensure that writing part if not failing.

Code:
$cmd = qq(/path/to/csso stylesheet.css > /tmp/stylesheet.min.css 2>&1)
system($cmd);

This User Gave Thanks to rajamadhavan For This Post:
# 9  
Old 08-27-2013
Thanks, that was helpful!

/usr/local/bin/csso: line 13: node: command not found

It needs node.js, but it looks like it can't find it. I'll try to see how to fix it.

EDIT: I modified csso binary file and where it called:
node
I added:
/usr/local/bin/node

It's working perfectly. Thank you very much!

Last edited by madispuk; 08-27-2013 at 09:50 AM..
# 10  
Old 08-27-2013
The correct thing to do in this case, instead of altering binary programs with a hex editor, is to add /usr/local/bin to your PATH environment variable so the system can find these things without hardcoded paths.
# 11  
Old 08-27-2013
Thank you Corona688 for you reply.
This binary wasn't really a binary, it was just in the /bin folder, so I could just change the code without using hex editor.
/usr/local/bin is in the PATH when I run:
set
If my script calls perl system() from the web interface, and apache is the user who runs it, it doesn't see these PATH variable. Does it have it's own ENV variables? Can you tell me how I can change apache ENV variables?
# 12  
Old 08-27-2013
Quote:
Originally Posted by madispuk
If my script calls perl system() from the web interface, and apache is the user who runs it, it doesn't see these PATH variable. Does it have it's own ENV variables? Can you tell me how I can change apache ENV variables?
Every process that runs has its own environment variables. Your perl script can alter its own environment variables via the ENV hash, i.e. $ENV{"PATH"}
This User Gave Thanks to Corona688 For This Post:
# 13  
Old 08-27-2013
Thank you for your reply! I can make correct modifications now.

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