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Load monitoring script

[root@www ~]# cat /root/checkload.sh 
#!/bin/bash                          
# Author: Muhammad Kamran Azeem      
# Created: Long ago                  
# Last revised: 2010-01-24           

HOSTNAME=$(hostname)
MAXLOAD=1
MAILINGLIST="kamran@example.com administrator@example.com"
# ACTUALLOAD=$(uptime | awk '{print $11}' | cut -f 1)
# http://www.linuxselfhelp.com/howtos/Bash-Prompt/Bash-Prompt-HOWTO-11.html
# Or :-
# uptime |  grep -o 'load.*' | awk '{print $3}' | awk -F, '{print $1}'
# Or :-
# uptime |  grep -o 'load.*' | awk '{print $3}' | cut -d, -f1

ACTUALLOAD=$(uptime | sed -e "s/.*load average: \(.*\...\), .*\..., .*\.../\1/" -e "s/ //g")
if [ "$1" != "" ]; then
  ACTUALLOAD=$1
fi

INTEGERLOAD=$(echo ${ACTUALLOAD} | cut -d. -f 1)

if [ ${INTEGERLOAD} -lt ${MAXLOAD} ]; then
  uptime
  echo "5 minute load average is: ${ACTUALLOAD}, which is normal. (Below defined max value: ${MAXLOAD}.)"
  exit 0
fi

echo "5 minute load avaerage is high: ${ACTUALLOAD}. Generating report of top 30 processes. (CPU and MEM.)"

## ps -eo "%C %p %u %U %c %x" |sort -r | head -n 10 > /tmp/load_report

ps -eo pcpu,pmem,pid,ruser,user,comm,stat,time --sort -pcpu,-pmem |  head -n 30 > /tmp/load_report.txt
SUBJECT="High load: ${ACTUALLOAD} , on ${HOSTNAME}"
cat /tmp/load_report.txt
cat /tmp/load_report.txt | /bin/mail -s "${SUBJECT}" ${MAILINGLIST}
exit 0

[root@www ~]#