www-data 14859 22383  0 16:32 ?        00:00:00 nginx: worker process
root     14933  8380  0 16:41 pts/0    00:00:00 grep --color=auto nginx
root     22383     1  0 Jun27 ?        00:00:00 nginx: master process /usr/sbin/nginx -g daemon on; master_process on;