Start the Java Process in Linux and obtain the process ID (PID)

Start Java in LinuxProgramGenerally, the command is executed:

Java-CP $ {classpath} org. Self. Test. Main

To stop a program, run the following command:

Kill $ {pid}

 

You cannot directly obtain the PID of the Java Process with this startup command, but you can use JPs or ps command to indirectly find the PID and then execute the kill command.

 

Some programs directly generate a. PID file during startup, so that they can directly read the file during kill. Command:Java-CP $ {classpath} org. Self. Test. Main <br/> echo $! > Main. PID <br/> kill 'cat main. PID'

The key is to know the special variable $ in Linux! The process ID (PID) of the recently executed command)