kill nginx process running under user from login node

remove_user_login_node.sh

+#!/bin/sh
+username="$1"
+usage() {
+  echo "Usage: $0 USERNAME"
+}
+if [[ "$EUID" -ne 0 ]]; then
+  echo "This script must be run as root!"
+  exit 1
+fi
+if [ -z "$username" ]; then
+  usage
+  exit 1
+fi
+if id "$username" &>/dev/null; then
+  echo "Deleting nginx process running under user: ${username}"
+  kill -9 ` ps -ef | grep 'nginx' | grep  ${username} | awk '{print $2}'`
+  echo "Deleted process"
+else
+  echo "user: ${username} not found."
+  exit 1
+fi