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BOX

                         COMMAND                       

GO

 ps

 SYNTAX

       ps  [ options ]

 FUNCTION

       Reports process status, i.e. running,

       sleeping, waiting, stopped, terminated, etc.

 SOME OPTIONS

       -a        - prints information about all terminal processes

       -e        - prints the environment as well as the

                   arguments to the command

       -u        - a user-oriented printout is produced

       -x        - asks even about processes with no terminal

       -t tlist  - restricts information to the processes

                   associated with terminals in the tlist.

 Let's look at three processes, P1, P2 and P3,

 where P1 is running, P2 is waiting and P3 is sleeping.

  P1

  P2

  P3

  Let's use the ps command to get

  the status of all processes on your system:

  Please type: 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 guess I must type this for you:

 $PROMPT$

FORGET1

???later make explanation on same screen as output

  Observe the result on the terminal, and note that

  PID is the process id, %CPU is the percentage

  of CPU time taken, TT is the terminal

  designation, TIME amount of time the process

  has been running, COMMAND the name of the command!

 $PROMPT$ps -aux                               

 [Press <CR> to see the result:]

DOSJMP

USER  PID %CPU  SZ TT STAT TIME COMMAND

jeff 9616 29.7  57 p6 R  2:00 pr -2 file

bob  9726 26.9 261 d5 R  0:01 ps -aux

ann  9010 14.9 779 p5 R  1:18 gemacs

mary 9585  1.7 251 i0 S  0:08 vi 4-ses

root 9699  1.5 110 ?  S  0:00 /usr/lib/lpd

root  204  0.1  65 ?  S 11:06 /etc/cron

root    0  0.0   0 ?  D  2:24 swapper

root    1  0.0  70 ?  I  8:14 init