Script does not set the variable and does not execute

Hi experts.

This script is in aix 5.3.
The variable Param9 is not being set and then the script does not execute.

#!/bin/ksh
PATH=/home/app/oracle/product/10.2.0/bin:/home/app/oracle/product/10.2.0:/usr/ccs/bin:/usr/bin/X11:/usr/lib:/usr/bin:/etc:/usr/sbin:/usr/ucb:/sbin:/usr/local/bin:/home/app/oracle/product/10.2.0/OPatch
export PATH
PARAM9=! ps -ef| grep -v grep | grep bpbkar|wc -l
if [[ $PARAM9  -gt 0 ]] ; then
  kill -9 $(ps -ef | grep -v grep | grep bpbkar | awk '{print $2}')
fi
LVL 8
LindaCAsked:
Who is Participating?
 
woolmilkporcConnect With a Mentor Commented:
Hi again,

the correct assignment is:

PARAM9=$(ps -ef| grep -v grep | grep bpbkar|wc -l)

You could as well run just the kill statement unconditionally:

 kill -9 $(ps -ef | grep -v grep | grep bpbkar | awk '{print $2}') 2>/dev/null

"kill" against an empty string will do no harm, of course, and since we're discarding the resulting error message nothing will be displayed on the terminal.

Another alternative:

PID=$(ps -ef | grep -v grep | grep bpbkar | awk '{print $2}')
[[ ! -z $PID ]] && kill -9 $PID

A bit shorter (the old regex trick):

PID=$(ps -ef | grep bpbka[r] | awk '{print $2}')
[[ ! -z $PID ]] && kill -9 $PID
0
 
LindaCAuthor Commented:
I have executed the statements, but  the only statement that gave me a result with the echo now is the assignment to the PARAM9 variable:

psprdbsvr:/home/oracle/dba/scripts/PRD> PARAM9=$(ps -ef| grep -v grep | grep bpbkar|wc -l)
psprdbsvr:/home/oracle/dba/scripts/PRD> echo $PARAM9
0


psprdbsvr:/home/oracle/dba/scripts/PRD> PID=$(ps -ef | grep -v grep | grep bpbkar | awk '{print $2}')
You have mail in /usr/spool/mail/oracle
psprdbsvr:/home/oracle/dba/scripts/PRD> echo $PID

psprdbsvr:/home/oracle/dba/scripts/PRD> PID=$(ps -ef | grep bpbka[r] | awk '{print $2}')
psprdbsvr:/home/oracle/dba/scripts/PRD> echo $PID

psprdbsvr:/home/oracle/dba/scripts/PRD>
0
 
Alexander Eßer [Alex140181]Software DeveloperCommented:
So, where's the problem?!
PARAM9=0 with wc -l says means "not found", so the 2nd command (PID) won't display anything (unless found)...
0
 
LindaCAuthor Commented:
Oh! ok, I though that if didin't find nothing it was supposed to show 0, but I don't know unix. So thank you as always.
0
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