logHighLoad.sh

#!/bin/bash

HIGH=0.2;
LOG_FILE=/var/log/highload.log;

CURRENT_LOAD=$( uptime | awk -F'load average:' '{ print $2 }' | awk -F','  '{gsub(/[ \t]+/, "", $1); print $1}' );
IS_HIGH=$( echo "$CURRENT_LOAD >= $HIGH" | bc );

if [ $IS_HIGH -eq 1 ] ; then
   top -b -n 1 2>&1 | while read line; do echo -e `/bin/date` "$line"; done >> $LOG_FILE
fi;