#!/bin/bash
#author jorge
#purpose: extracting daily log entries from multiple log files

LOG1=/var/log/messages
LOG2=/var/log/auth.log
LOG3=/var/log/syslog
MYDATE=`date +%b\ %d`
OUTPUTLOG=`date +%F`.dailylog
EMAIL=btuser

for LOG in $LOG{1,2,3}
do
        #if file exist and is not empty then process 
        if [ -e $LOG ] && [ -s $LOG ]; then
                echo $LOG BEGIN >> $OUTPUTLOG
                #only grabbing todays log out of file
                grep -E "$MYDATE" $LOG >> $OUTPUTLOG 2>/dev/null
                echo $LOG END >> $OUTPUTLOG
                echo >> $OUTPUTLOG
        fi
done

#email output
cat $OUTPUTLOG | mail -s "daily logs `date +%F`" $EMAIL 2>/dev/null

#END