down TrinityCore servers bash script

#!/bin/sh

PID=`pgrep -u $USER authserver`
if [ -n "$PID" ]; then
  echo "Interrupting authserver then waiting 4 seconds."
  kill -INT `pgrep -u $USER authserver`
  sleep 4
  PID=`pgrep -u $USER authserver`
  if [ -n "$PID" ]; then
    echo "Killing authserver - it didn't shut down properly."
    kill -KILL `pgrep -u $USER authserver`
    sleep 1
  fi
else
  echo "authserver was not found running."
fi

PID=`pgrep -u $USER bnetserver`
if [ -n "$PID" ]; then
  echo "Interrupting bnetserver then waiting 4 seconds."
  kill -INT `pgrep -u $USER bnetserver`
  sleep 4
  PID=`pgrep -u $USER bnetserver`
  if [ -n "$PID" ]; then
    echo "Killing bnetserver - it didn't shut down properly."
    kill -KILL `pgrep -u $USER bnetserver`
    sleep 1
  fi
else
  echo "bnetserver was not found running."
fi

PID=`pgrep -u $USER worldserver`
if [ -n "$PID" ]; then
  echo "Interrupting worldserver, then waiting 10 seconds."
  kill -INT `pgrep -u $USER worldserver`
  sleep 10
  PID=`pgrep -u $USER worldserver`
  if [ -n "$PID" ]; then
    echo "Killing worldserver in case it didn't shut down."
    kill -KILL `pgrep -u $USER worldserver`
    sleep 1
  fi
else
  echo "worldserver was not found running."
fi