Shell Programming and Scripting

{
        echo "From: from_user@domain.com"
        echo "To: to_user@domain.com"
        echo "MIME-Version: 1.0"
        echo "Subject: Email Subject"
        echo 'Content-Type: multipart/mixed; boundary="-q1w2e3r4t5"'
        echo "---q1w2e3r4t5"

        echo "Content-Type: text/html"
        echo "Content-Disposition: inline"
        echo '---q1w2e3r4t5'
        cat html_file
        echo '---q1w2e3r4t5'

        echo "Content-Type: text/plain; charset=US-ASCII; name=attachment_file"
        echo "Content-Disposition: attachment; filename=attachment_file"
        echo '---q1w2e3r4t5'
        cat attachment_file
        echo '---q1w2e3r4t5--'
} | /usr/lib/sendmail -t

mutt -s "The Error Summary " -a $LOGDIR/ETL_ERR_SUMMARY.log $ETL_SUPPORT_MAIL_ID < $LOGDIR/mail_body.txt