Methods to hibernate a process in a shell script (sleep usage) _linux shell

Sometimes a shell script is used to execute a series of programs sequentially. Some programs do not immediately exit after the stop, for example, there is a tomcat hung, even with the kill-9 command has not been an instant to end.

So if the shell is not waiting for it to quit and then execute the next line, it's going to be a mess. Just know the original shell can also have sleep parameters.

Copy Code code as follows:

Sleep 1 sleeps 1 seconds
sleep 1s 1 seconds
Sleep 1m 1 min.
Sleeping 1h sleep 1 hours

Use the following, such as restarting Tomcat:

Copy Code code as follows:

#!/bin/sh
/opt/tomcat/bin/shutdown.sh
Sleep 3 #等3秒后执行下一条
/opt/tomcat/bin/startup.sh