popup message

HI,,
I am new to the shell scripting and trying to be adopted soon...Can u please suggest me how do we populate a message when the following condition fails......

Thanks and Regards,
Ela

success250=`grep -c 250.Transfer.completed.successfully /tmp/int002_$$`

mail_list="elavv2003@gmail.com"

if [ "$success250" -eq 1 ]
then
cat $1 /tmp/int002_$$ > /tmp/int002err.$$
#sdm -t $mail_list -s "Success "`basename $0` -m "$1 /tmp/int002_$$"
mutt $mail_list -s "Success "`basename $0` -i "/tmp/int002err.$$" </dev/null
else
#sdm -t $mail_list -s "FAILURE "`basename $0` -m "$1 /tmp/int002_$$"
mutt $mail_list -s "FAILURE "`basename $0` -i "/tmp/int002err.$$" </dev/null
fi