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Full Discussion: Getting process ID in a shell script.
Operating Systems AIX Getting process ID in a shell script. Post 302368762 by haroon_a on Thursday 5th of November 2009 02:32:07 PM
Old 11-05-2009
Quote:
Originally Posted by scottn
I don't have jboss running, but if I substitute that for something else then it works fine.

Code:
PID=$(ps -eo pid,comm | awk '/mingetty/ {print $1}')     
/home/oracle/tmp > echo $PID
2499 2500 2501 2502 2503
 
 
> cat Test
PID=$(ps -eo pid,comm | awk '/mingetty/ {print $1}')     
 
echo $PID
 
if [ -z "$PID" ]; then
  echo no mingetty running
else
  echo alles gut!
fi
-----------------------------
> ./Test
2499 2500 2501 2502 2503
alles gut!

Just saw it's AIX.

Try
Code:
PID=$(ps -ef | awk '/jboss/ {print $2}') 
if [ -z "$PID" ]; then
  echo not running
else
  echo is running!
fi

Scott,

That worked! Thanks alot and real appreciate it.

---------- Post updated at 03:32 PM ---------- Previous update was at 03:11 PM ----------

On a seperate note:

Now I know how to get the processes for my jboss, and store it in a vriable.

I want to issue another ps command on those PIDs of jboss, later on in my script to see if they are still running or not. i.e.

Code:
PID=$(ps -ef | awk '/jboss/ {print $2}') 
if [ -z "$PID" ]; then
  echo not running
else
  echo is running!
fi
...
...
# do some other things here...
...
...
# Now i want to issue a ps command on those process IDs stored in $PID, to see if those process are still runnning.

Can you please advise...

Thanks again.
 

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LEARN ABOUT FREEBSD

dtruss

DTRUSS(1)						    BSD General Commands Manual 						 DTRUSS(1)

NAME

     dtruss -- Trace system calls and userland stacks using DTrace

SYNOPSIS

     dtruss [-acdefholLs] [-t syscall] [-n name -p pid command]

DESCRIPTION

     The dtruss utility traces system calls and (optionally) userland stack traces for the specified programs.

     The following options are available:

     -p pid  Trace the process with PID pid.

     -n name
	     Trace the process with name name.

     -t syscall
	     Trace the specified syscall only.

     -a      Print all details.

     -c      Print syscall counts.

     -d      Print relative times (in microseconds).

     -e      Print elapsed times (in microseconds).

     -f      Follow the children processes.

     -l      Force printing PID / TID.

     -o      Print time spent on CPU.

     -s      Print userland stack backtraces.

     -L      Don't print PID / TID.

     -b bufsize
	     Specify the DTrace buffer size.

EXIT STATUS

     The dtruss utility exits 0 on success, and >0 if an error occurs.

SEE ALSO

     dtrace(1)

HISTORY

     The dtruss utility comes from the DTraceToolkit and was first imported into FreeBSD 9.0.

AUTHORS

     Brendan Gregg

BSD
								  August 26, 2010							       BSD
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