Whether the shell script monitor is executing and automatically starts the process if it is not executed

Code inside the monitoring 1 processes, the code is very simple, I do not explain, there is not understand, you can ask in reply.

I saw it and gave it a lecture.

Of course, the script to execute, you need to turn on the system's timer process Crond, and edit the configuration file.

Executive Crontab-e

Enter */1 * * * */home/automonitor.sh to execute the script once a minute.

[C-sharp]View PlainCopy

2. #!/bin/sh
6. Cdnclient_pid= ' ps-aux|grep-v ' grep ' |grep-c '/cdn_client_d '
10. Ulimit-c Unlimited
12. #echo "$cdnclient _pid"
16. If [$cdnclient _pid-eq 0]
18. Then
20. cd/home/cdnclient/
22. ./startup.sh
24. cd/home/
26. now= ' Date +%y-%m-%d[%h:%m:%s] '
28. Echo "at $now start cdnclient-b/n" >> check_cdnclient.log
30. Fi

http://blog.csdn.net/langeldep/article/details/6166648

The shell script monitor is executing and automatically starts the process if it is not executed