#!/bin/sh -x
#
#
#
PRINTF=/usr/bin/printf
GREP=/usr/bin/grep
TAIL=/usr/bin/tail
COPY=/usr/bin/cp
CAT=/usr/bin/cat
LOG_FILE="$1"
LOG_PATH="/var/log/$1"

#To check if log file to check has been given as argument when running the script
if [ $# -ne 0 ] ; then
           $PRINTF "%s: Is the name of the log file you will be scanning. \n" $1
           $PRINTF $LOG_FILE"\n"
           $PRINTF $LOG_PATH"\n"

                if [ -f $LOG_PATH ];       #if logfile exits
                then
                        echo "File $LOG_FILE exists \n"
                        $COPY $LOG_PATH ./
                        $CAT -n $LOG_FILE > ./tmp_log
#                       $CAT tmp_log | less

                        #SEARCH=`GREP -i -E -q 'error|warning' $LOG_PATH` #search for strings error or warning in any form
                        # script to check for string to search
                        SEARCH=`$GREP -i 'error|warning'` #search for strings error or warning in any form
#                        SCAN_LOG=`$TAIL $1|[${SEARCH}]`  #scanning logfile for string pattern

                        # script to send simple email
                        SUBJECT="Error/Warning messages in logfile" # email subject
                        RECIPIENT="emailid@domain.extension" # Email To ?
#                       EMAILMESSAGE="$SCAN_LOG" # Email text/message
                        EMAILMESSAGE="$SEARCH" # Email text/message

                        /bin/mailx -s "$SUBJECT" "$RECIPIENT" < $EMAILMESSAGE # send an email using /bin/mail
                                echo "mail sent"
                else
                        echo "File $LOG_FILE does not exists \n"
                fi

        else
   $PRINTF "%s: Need the name of the log that needs to be checked\n" $0
#       EXIT (1)
fi

"logmon1" 48 lines, 1420 characters

> sh logmon1 log.03
log.03: Is the name of the log file you will be  scanning.
log.03
/../../log.03
File log.03 exists

^C
>

grep - i 'error' <filename> 
Apr 26 03:40:55 goanna.cs.rmit.edu.au SRS Proxy[17590]: [ID 663108 daemon.error] Could not upload bulk message
Apr 26 03:45:56 goanna.cs.rmit.edu.au SRS Proxy[17590]: [ID 388765 daemon.error] Could not send message from queue: /var/SUNWsrspx/SRSQueueStore/store/queues/REGISTRATION/registration
Apr 26 03:49:11 goanna.cs.rmit.edu.au SRS Proxy[17590]: [ID 663108 daemon.error] Could not upload bulk message

grep -i 'error|warning' <filename> 
>