【已完成】求个Nginx和MySQL的守护脚本

求个Nginx和MySQL的守护脚本，最近一个月，Nginx不定期突然挂了2次，有时候是凌晨，今天数据库也突然挂了一次

环境配置：服务器物理机，32核128G内存1TB NVME，日PV千万，Nginx 1.21，PHP7.4，MySQL8.0

又修改了一下，运行好像正常，分享给大家，有错误的话欢迎指正

1. #! /bin/bash
   
2. nginx_procnum=`ps -ef | grep "nginx" | grep -v grep | wc -l`
   
3. mysql_procnum=`ps -ef | grep "mysqld" | grep -v grep | wc -l`
   
4. redis_procnum=`ps -ef | grep "redis" | grep -v grep | wc -l`
   
5. memcached_procnum=`ps -ef | grep "memcached" | grep -v grep | wc -l`
   
6. if [ $nginx_procnum -eq 0 ]
   
7. then
   
8. echo "nginx starting..."
   
9. /etc/init.d/nginx start
   
10. elif [ $mysql_procnum -eq 0 ]
    
11. then
    
12. echo "mysql starting..."
    
13. /etc/init.d/mysqld start
    
14. elif [ $redis_procnum -eq 0 ]
    
15. then
    
16. echo "redis starting..."
    
17. /etc/init.d/redis start
    
18. elif [ $memcached_procnum -eq 0 ]
    
19. then
    
20. echo "memcached starting..."
    
21. /etc/init.d/memcached start
    
22. else
    
23. echo "running well"
    
24. fi

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自己写了一份，运行好像正常，有大佬帮忙看看吗？？？

1. #! /bin/bash
   
2. nginx_procnum=`ps -ef | grep "nginx" | grep -v grep | wc -l`
   
3. mysql_procnum=`ps -ef | grep "mysqld" | grep -v grep | wc -l`
   
4. redis_procnum=`ps -ef | grep "redis" | grep -v grep | wc -l`
   
5. memcached_procnum=`ps -ef | grep "memcached" | grep -v grep | wc -l`
   
6. if [ $nginx_procnum -eq 0 ]
   
7. then
   
8. echo "nginx starting..."
   
9. /etc/init.d/nginx start
   
10. elif [ $mysql_procnum -eq 0 ]
    
11. then
    
12. echo "mysql starting..."
    
13. /etc/init.d/mysqld start
    
14. elif [ $redis_procnum -eq 0 ]
    
15. then
    
16. echo "redis starting..."
    
17. /etc/init.d/redis start
    
18. elif [ $memcached_procnum -eq 0 ]
    
19. then
    
20. echo "memcached starting..."
    
21. /etc/init.d/memcached start
    
22. fi

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仅供参考：

1. pids=$(ps -ef | grep -E "nginx" | grep -v grep)
   
2. if [ "$pids" == "" ];then
   
3.         echo "starting...."
   
4.         /etc/init.d/nginx start
   
5. fi
   
6. 
   
7. pids=$(ps -ef | grep -E "myqsld" | grep -v grep)
   
8. if [ "$pids" == "" ];then
   
9.           echo "starting...."
   
10.          /etc/init.d/mysqld start
    
11. fi

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