Solved Java PID ( Linux )

Its possible to select the PID to the process java when I run my server?

 

PID is assigned by the kernel, you cannot specify what it will be.

As far as determining what the pid is:

Code:

java -jar somejar.jar &
JAVAPID=$(pgrep -s 0 java)

 

The 0 is the pid that i can choose to the java process?

 

No, the -s 0 flag tells pgrep to only check the session of the parent shell when matching the process name.

If you `pgrep java` you will list EVERY process with "java" somewhere in it, system/user-wide, which may or may not be the one you want. The shell variable $JAVAPID holds the PID of the process you launched in the first line (or should, if you have multiple child processes that contain 'java' it will contain them all.)

Edit:
man pgrep for more information on how to refine the search, but my example should work in the simple case of just one java child process.

 

Thanks for your idea, I do it with another thing but the same idea ^^ thanks

Code:

kill -9 $(ps aux | grep craftbukkit | head -1 | cut -d' ' -f6)

 

Ah, you just want to kill craftbukkit? 'pkill -signal 9 craftbukkit' is all you need.

 

hahhahha yeah for crashes is faster than "toop + k + PID", thaks for your help ^^