模拟Nginx服务启动关闭
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已知nginx管理命令为：
启动：/application/nginx/sbin/nginx
停止：/application/nginx/sbin/nginx -s stop
重新加载：/application/nginx/sbin/nginx -s reload
请用case脚本模拟Nginx服务启动关闭：
/etc/init.d/nginx {start|stop|reload|restart}，并可通过chkconfig管理。
[[email protected] ~]# cat /etc/init.d/nginx #/bin/sh # chkconfig: 2345 15 62 #设定运行级别以及启动和停止Nginx服务顺序 # description: Nginx Server #脚本说明 [ -f /etc/init.d/functions]&&. /etc/init.d/functions||exit 1 #Define Arivables Path=/application/nginx/sbin/nginx RETVAL=0 #Define Start Function start() { if [ `ss -lntup|grep nginx|wc -l` -gt 0];then echo "Nginx is Running..." else $Path RETVAL=$? if [ $RETVAL -eq 0 ];then action "Starting Nginx..."/bin/true else action "Starting Nginx..."/bin/false fi fi return $RETVAL } #Define Stop Function stop() { if [ `ss -lntup|grep nginx|wc -l` -gt 0];then $Path -s stop RETVAL=$? if [ $RETVAL -eq 0 ];then action "Stopping Nginx..."/bin/true else action "Stopping Nginx..."/bin/false fi else echo "Nginx is Stopped" fi return $RETVAL } #Define Restart Function reload() { if [ `ss -lntup|grep nginx|wc -l` -gt 0];then $Path -s reload RETVAL=$? if [ $RETVAL -eq 0 ];then action "Reloading Nginx..."/bin/true else action "Reloading Nginx..."/bin/false fi else echo "Nginx is Stopped" fi return $RETVAL } #Define Restart Function restart() { stop sleep 1 start return $RETVAL } case "$1" in start) start RETVAL=$? ;; stop) stop RETVAL=$? ;; reload) reload RETVAL=$? ;; restart) restart RETVAL=$? ;; *) echo "USAGE:$0 {start|stop|reload|restart}" RETVAL=2 ;; esac exit $RETVAL [[email protected] ~]# ls -l /etc/init.d/nginx -rwxr-xr-x. 1 root root 1680 Jun 9 12:13 /etc/init.d/nginx [[email protected] ~]# chkconfig --list|grep nginx nginx 0:off 1:off 2:on 3:on 4:on 5:on 6:off
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