方式一：
1 # 在/etc/rc.d/rc.local文件中追加启动命令，该文件追加后，会随着机器自动后，自动运行文件中的命令 2 # vim /etc/rc.d/rc.local 3 4 # 权限问题：在centos7中，/etc/rc.d/rc.local的权限被降低了，所以需要执行如下命令赋予其可执行权限（如遇权限问题，请执行此命令） 5 # chmod +x /etc/rc.d/rc.local
方式二：
Centos 系统服务脚本目录：
1 # /usr/lib/systemd/
1 # /lib/systemd/system/
1 # vim /lib/systemd/system/nginx.service
1 [Unit] 2 Description=nginx 3 After=network.target 4 5 [Service] 6 Type=forking 7 ExecStart=/www/lanmps/init.d/nginx start 8 ExecReload=/www/lanmps/init.d/nginx restart 9 ExecStop=/www/lanmps/init.d/nginx stop 10 PrivateTmp=true 11 12 [Install] 13 WantedBy=multi-user.target
1 # /lib/systemd/system
1 # systemctl enable nginx.service
4.其他命令
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使某服务自动启动
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chkconfig --level 3 httpd on
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systemctl enable httpd.service
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使某服务不自动启动
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chkconfig --level 3 httpd off
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systemctl disable httpd.service
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检查服务状态
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service httpd status
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systemctl status httpd.service （服务详细信息）
systemctl is-active httpd.service （仅显示是否 Active)
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显示所有已启动的服务
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chkconfig --list
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systemctl list-units --type=service
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启动某服务
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service httpd start
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systemctl start httpd.service
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停止某服务
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service httpd stop
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systemctl stop httpd.service
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重启某服务
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service httpd restart
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systemctl restart httpd.service
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启动nginx服务
1 systemctl start nginx.service
设置开机自启动
1 systemctl enable nginx.service
停止开机自启动
systemctl disable nginx.service
查看服务当前状态
systemctl status nginx.service
重新启动服务
systemctl restart nginx.service
查看所有已启动的服务
systemctl list-units --type=service
原文：https://www.cnblogs.com/longweiqiang/p/11877256.html