Script to send single attachments using sendmail

Some modifications may be needed for your needs. Note, it doesn't support anything else but a .txt based attachment.

#!/bin/ksh
: '
sendattch.sh : Encapsulate standard input as a MIME attachment
and mail it to the correct destination.

ARGS: 1: Delivery address
2: File to send as attachment
'
ADDR=$1
FILE=$2
INTCHG=`basename $2 .txt`

USAGE="Usage: sendattch.sh delivery_address file_name"

TEMP=/tmp/$INTCHG.att

# Tidy-up Function

function doExit {
rm -f $TEMP
exit $1
}

# Validate arguments

[[ $# -eq 2 ]] || {
echo "Invalid number of arguments: $#\n$USAGE" >&2
doExit -1
}

# Construct the message

{
echo "To: $ADDR"
echo "Subject: $INTCHG"
echo "X-Priority: 3"
echo "MIME-Version: 1.0"
echo "Content-Type: application/msword;"
echo " name=\"$INTCHG.txt\""
echo "Content-Disposition: attachment;"
echo " filename=\"$INTCHG.txt\""
echo "Content-Description: $INTCHG"
echo
cat $FILE
} > $TEMP

# Send the constructed message

/usr/sbin/sendmail $ADDR < $TEMP
doExit $?