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root@504686eada44:/# ps -auwx |grep nginx
root 134 0.0 0.0 85916 2784 ? Ss 11:37 0:00 nginx: master process /usr/sbin/nginx
www-data 135 0.0 0.0 86256 3664 ? S 11:37 0:00 nginx: worker process
www-data 136 0.0 0.0 86256 3664 ? S 11:37 0:00 nginx: worker process
www-data 138 0.0 0.0 86256 3664 ? S 11:37 0:00 nginx: worker process