feat: adding flag for force kill and adding check to ensure script is run as root

scripts/kill_user_process.sh

@@ -3,9 +3,16 @@
 username="$1"
 
 usage() {
-  echo "Usage: $0 USERNAME"
+  echo "Usage: $0 USERNAME to run graceful shutdown of processes"
+  echo "Usage: $0 USERNAME -k to run forced shutdown of processes"
 }
 
+if [[ "$EUID" -ne 0 ]]; then
+  echo "This script must be run as root!"
+  exit 1
+fi
+
+
 if [ -z "$username" ]; then
   usage
   exit 	1
@@ -18,5 +25,12 @@ if [ "$username" = "root" ]; then
 	exit 1
 fi
 
-pkill -u $userId
-pkill -9 -u $userId
+if [ -k ]; then
+  echo "Performing SIGKILL on processes belonging to $username"
+  pkill -9 -u $userId
+else
+echo "Performing SIGTERM on processes belonging to $username"
+  pkill -u $userId
+fi
+
+