Checking memory usage (for Apache)

ps -ylC httpd | awk '{x += $8;y += 1} END {print "Apache Memory Usage (MB): "x/1024; print "Average Proccess Size (MB): "x/((y-1)*1024)}'

acquired from:
http://webserverpage.com/how-to-measure-or-calculate-maximum-memory-usage-of-apache/

#!/bin/bash

if [ $# -ne 1 ]
then
  echo ""
  echo "ERROR: pass in process name"
  echo "  $0 {httpd|java}"
  echo ""
  exit 9
fi

echo "* * * * * * * *"
uname -n
ps -ylC ${1} | awk '{x += $8;y += 1} END {print "'${1}' Memory Usage (MB): "x/1024; print "Average Proccess Size (MB): "x/((y-1)*1024)}'
echo ""

exit 0

morpheus:~ jradtke$ for HOST in 2 3 4 5; do ssh fatapp0${HOST} "uname -n; for PROC in httpd java; do /opt/bin/check_process_memory.sh \${PROC}; done"; echo; done