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I have started a PHP script via browser and due to a loop error the script continues to be executed even after closing the browser. I am noticing it since the script is logging error messages to my logfile (path known).

We have a Apache server where many developers work together and the user is nmdev. So how can I find out what process it the one running and logging to my logfile?

ps -afe | grep php53 gives me many processes of today like:

nmdev 26518 24151 0 11:51 ? 00:00:00 /opt/xxx/yyy/apache-php5/bin/httpd -k start

marked as duplicate by Iain, Ward, mdpc, dawud, Tom O'Connor Aug 27 '13 at 20:24

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The tool lsof with the complete path of your file will give you a list of all processes which are accessing to it.


me@home ~ % lsof /home/me                                    
i3bar      1894 me  cwd    DIR    8,3    32768 4718593 /home/me
j4status   1895 me  cwd    DIR    8,3    32768 4718593 /home/me
germinal   1899 me  cwd    DIR    8,3    32768 4718593 /home/me
  • Yes I know lsof but it is not available -bash: lsof: command not found and I am not root. – Shlomo Aug 27 '13 at 11:01
  • Perhaps you should install it in this case... – etagenklo Aug 27 '13 at 11:32
  • Ok, just saw you're NOT root. You'll have to be root (or at least be allowed to use sudo) in order to use lsof... – etagenklo Aug 27 '13 at 11:33

The solution for my problem was to use:

/sbin/fuser /path/to/logfile

That gave me all the processes writing to the file. I killed them all without mercy. Problem solved.

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