AIX

#!/bin/ksh
DATA_DIR=/usr/apps/
CONTAINER=PROD

#ps -eflw --cols 2048 | grep startcontainer | grep -v grep | grep $CONTAINER$ | grep $DATA_DIR | while read -e line
ps -efl | grep startcontainer | grep -v grep | grep $CONTAINER$ | grep $DATA_DIR | while read -u line
do
#columns=( `echo $line` )
set -A columns $line
columnCount=${#columns[@]}
index=0

pid=${columns[3]}
echo $pid
#cmd=${columns[@]:15:$columnCount}
workingDir=${columns[$columnCount-1]}
container=${workingDir##*/}
installDir=`expr match $workingDir '.*/\([^/]*\)/[^/]*$'`

#echo Working Directory=$workingDir
#echo Container Name=$container
#echo Install Directory=$installDir

echo Found running container "$container" installed in "$installDir"

#ps -eflw --cols 2048 | grep $pid | grep -v startcontainer | grep -v grep | while read -e ctr
ps -efl | grep $pid | grep -v startcontainer | grep -v grep | while read -u ctr
do
#ctrCols=( `echo $ctr` )
set -A ctrCols $ctr
ctrColsCount=${#ctrCols[@]}

#ctrPid=${ctrCols[3]}
ctrPid=${ctrCols[4]}
#ctrCmd=${ctrCols[@]:15:$ctrColsCount}

#echo Child Process ID=$ctrPid
#echo Child Command=$ctrCmd

echo Stopping Process ID $ctrPid
kill $ctrPid
done

done

running script wth -x trace options shows below result

+ DATA_DIR=/usr/apps/
+ CONTAINER=PROD
+ ps -efl
+ grep startcontainer
+ grep -v grep
+ grep PROD$
+ grep /usr/apps/
+ read -u line

while read line

ps -efl | grep "startcontainer"
# or if that gives syntax errors,
ps -ef | grep "startcontainer"

 ... | grep '[s]tartcontainer' | ...