check_erros_log

#!/bin/bash
#script to check how many erros in the current hour
# Felipe Ferreira June 2012

dia=`date +%d -d  "1 hour ago"`
mes=`date +%b -d  "1 hour ago"`
ano=`date +%Y -d  "1 hour ago"`
hora=`date +%H -d  "1 hour ago"`
tday="${dia}/${mes}/${ano}:${hora}"

#echo $tday
#echo "09/Jan/2015:10"

if [ $# -lt 3 ]
  then
    echo "No arguments supplied"
    echo "Usage: $0 <LOG> <KEY> <WARNING> <CRITICAL>"
    echo "Example: $0 /var/log/tomcat6/access_log.log 500 5 10"
    exit 1
fi
log=$1
key=$2
warn=$3
crit=$4

if [ ! -f $log ]; then
        echo "OK - File $log not found!"
        exit 0
fi

log_short=`echo $log|awk -F"/" '{ print $NF}'`

CMD="grep '$tday' $log | grep -c ' ${key} '"
#echo $CMD
c=`eval $CMD`

if [ -z "$c" ]; then
 c=0
fi

if [ "$c" -ge "$crit" ]; then
 echo "CRITICAL - Existem $c $key no $log_short as $hora horas|count=$c"
 exit 2
elif [ "$c" -ge "$warn" ]; then
 echo "WARNING - Existem $c $key no $log_short as $hora horas|count=$c"
 exit 1
else
 echo "OK - Existem $c $key no $log_short as $hora horas|count=$c"
 exit 0
fi