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


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.


You can use lsof to find PID of the process accessing a certain file:

[rhusar@rhusar ~]$ ps xafu | grep cat
cat     5700 rhusar    1w   REG   0,29       57 13154551 /tmp/abc

However, if its logging via HTTPd itself, I would think you might only see the PID of the HTTPd instance.

  • Yes I know but it is not available -bash: lsof: command not found and I am not root. – Shlomo Aug 27 '13 at 11:01
  • lsof command is usually a separate package you need to have installed (e.g. lsof-4.87-2.fc19.x86_64 on current fedora). Get in touch with the admin and have it installed. – Radoslav H. Aug 27 '13 at 11:04

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