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NEXT3

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If they want to quit, do so

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If they want to quit, do so

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BOX

                          COMMAND                       

GO

 kill

 SYNTAX

       kill  [ - signo ] process ID ...

 FUNCTION

       Terminate active process(es) on the system.

       kill sends a signal 15 (terminate) to the

       specified process.  This will normally kill

       the process that did not catch or ignore the

       signal.  If a process ID is preceded with

       the option -9 that will assure that the

       specified process will definitely be killed!

 Let us see the active processes on your 

 system by typing ps -aux at the prompt!

 $PROMPT$

 That is correct!

 You've got it on the 2nd try.

 Good, you understand the concept.

 Please type ps -aux

 Please type ps -aux

 I will help you this time.

 $PROMPT$

FORGET1

 $PROMPT$ps -aux                             

 Observe the result on the terminal!

 PID TTY TIME COMMAND

 0    ?   0:00 swapper

 1    ?   0:01 init

 24   co  0:02 sh

 25   a1  0:00 getty

 18    ?  0:09 cron

 20   a3  0:14 wastegame

 37   co  2:14 ps -aux

 At this point you decide to kill process 20 

 on the system by typing the kill -9 20 command!

 Try it now.

 That is correct!

 You've got it on the 2nd try.

 Good, you understand the concept.

 Please type kill -9 20

 Please type kill -9 20

 I will help you this time.

 $PROMPT$

FORGET2

 $PROMPT$kill -9 20                            

 Observe the result on the terminal!

 $PROMPT$

 Finally, let us verify that the process

 with process id (PID) 20 - wastegame was

 indeed killed, by typing again ps -aux!

 $PROMPT$

 That is correct!

 You've got it on the 2nd try.

 Good, you understand the concept.

 Please type ps -aux

 Please type ps -aux

 I will help you this time.

 $PROMPT$

FORGET3

 $PROMPT$ps -aux                              

 Observe the result on the terminal!

 PID TTY TIME COMMAND

 0    ?   0:00 swapper

 1    ?   0:01 init

 24   co  0:02 sh

 25   a1  0:00 getty

 18    ?  0:09 cron

 42   co  2:17 ps -aux

 And indeed process 20 - wastegame is gone.  Remember 

 however, that a user can always kill his own processes.  

 To kill someone else's process, one must be a superuser!