Bash: Send mail from command-line

sendmail.sh

#!/bin/bash

# Send a simple mail from shell with this script
# Niko Heikkila 2012

TO=$1
SUBJECT=$2
MSG=$3
BODY=$HOME/message.tmp

# Add padding to email message
echo -e "\n\n" > "$BODY"
echo "$MSG" >> "$BODY"
echo -e "\r\n" >> "$BODY"

if [ -f "$BODY" ]
then
   # Send mail if message exists
   mail -s "$SUBJECT" "$TO" < "$BODY"
else
   echo "Sending mail failed, please try again."
   exit
fi

# Delete sent message
rm -f "$BODY"