How to use kill -9 -1 or pkill -u command in bash script

Question

I was developed oracle application services auto down script. Script is running successfully. But after running script I need to kill the process.

I tried it using kill -9 -1 and pkill -u <OS username for application services> both commands. But I did not get expected results.

. <env path> run

sh <script_path>/adstpall.sh apps_user_name/apps_password

kill -9 -1

#pkill -u <OS username for application services>