Centos What files are open to that PID

Find out what files are open by that pid file.

1. Find the pid for you service

ps aux | grep httpd

apache   24179  0.0  0.0 251316 15528 ?        S    08:58   0:00 /usr/sbin/httpd

Here this pid is 8582 now list all files open by that pid.

2. List files beloning to that file

lsof -p 24179

OR

ls -l /proc/24179/fd

l-wx------ 1 root root 64 Aug 29 09:04 113 -> /var/log/httpd/access_log_sycochuck
l-wx------ 1 root root 64 Aug 29 09:04 114 -> /var/log/httpd/_apache_access_log
l-wx------ 1 root root 64 Aug 29 09:04 115 -> /var/log/httpd/_apache_access_log
l-wx------ 1 root root 64 Aug 29 09:04 116 -> /var/log/httpd/_apache_access_log