Shell Programming and Scripting

logfile="/tmp/application.log"
output=$(grep "ERROR" $logfile)
if [ -n "$output" ]
then
    echo "found- send email" 
else
    echo "not found"
fi

"   ERROR  - Error while reading from socket
java.net.SocketException: Connection reset "

logfile="/tmp/application.log"

if awk '/ERROR/ && !/Error while reading from socket/ { exit 0 } END { exit 1}' $logfile
then
        echo "found- send email"
else
        echo "not found"
fi

logfile="/tmp/application.log"  
if awk '/ERROR/ && !/Error while reading from socket/ { _e=1;exit } END { exit _e}' $logfile; then
         echo "found- send email" 
else         
         echo "not found"
fi