查看nginx进程看看有没有启动，并可以查看进程ID
[root@tc3 nginxcs]# ps -ef|grep nginx root 20538 1 0 13:51 ? 00:00:00 nginx: master process /opt/nginx/sbin/nginx root 20539 20538 0 13:51 ? 00:00:00 nginx: worker process root 20540 20538 0 13:51 ? 00:00:00 nginx: worker process root 24132 1 0 15:03 ? 00:00:00 nginx: master process sbin/nginx nobody 24133 24132 0 15:03 ? 00:00:00 nginx: worker process root 24552 20113 0 15:12 pts/2 00:00:00 grep nginx [root@tc3 nginxcs]#
停止nginx，其实就是杀掉进程，但是要注意不能用kill -9 进程id，因为nginx启动时有子进程，所以要用下面方式杀死
[root@tc3 nginxcs]# ps -ef|grep nginx root 20538 1 0 13:51 ? 00:00:00 nginx: master process /opt/nginx/sbin/nginx root 20539 20538 0 13:51 ? 00:00:00 nginx: worker process root 20540 20538 0 13:51 ? 00:00:00 nginx: worker process root 20544 1 0 13:51 ? 00:00:00 nginx: master process /opt/nginxcs/sbin/nginx nobody 24052 20544 0 15:02 ? 00:00:00 nginx: worker process root 24066 20113 0 15:02 pts/2 00:00:00 grep nginx [root@tc3 nginxcs]# kill 20544 [root@tc3 nginxcs]# ps -ef|grep nginx root 20538 1 0 13:51 ? 00:00:00 nginx: master process /opt/nginx/sbin/nginx root 20539 20538 0 13:51 ? 00:00:00 nginx: worker process root 20540 20538 0 13:51 ? 00:00:00 nginx: worker process root 24104 20113 0 15:03 pts/2 00:00:00 grep nginx [root@tc3 nginxcs]#
启动nginx
[root@tc3 nginxcs]# ps -ef|grep nginx root 20538 1 0 13:51 ? 00:00:00 nginx: master process /opt/nginx/sbin/nginx root 20539 20538 0 13:51 ? 00:00:00 nginx: worker process root 20540 20538 0 13:51 ? 00:00:00 nginx: worker process root 24104 20113 0 15:03 pts/2 00:00:00 grep nginx [root@tc3 nginxcs]# sbin/nginx [root@tc3 nginxcs]# ps -ef|grep nginx root 20538 1 0 13:51 ? 00:00:00 nginx: master process /opt/nginx/sbin/nginx root 20539 20538 0 13:51 ? 00:00:00 nginx: worker process root 20540 20538 0 13:51 ? 00:00:00 nginx: worker process root 24132 1 0 15:03 ? 00:00:00 nginx: master process sbin/nginx nobody 24133 24132 0 15:03 ? 00:00:00 nginx: worker process root 24139 20113 0 15:03 pts/2 00:00:00 grep nginx [root@tc3 nginxcs]#