Shell Programming and Scripting

mail -s "You've got mail"  somebody@example.com

echo "Mail Body" | mail -s "Subject" somebody@example.com

#!/bin/bash
# script to send simple email
# email subject
SUBJECT="SUBJECT"
# Email To ?
EMAIL="s.odeh@masiya.net"
# Email text/message
EMAILMESSAGE="/tmp/emailmessage.txt"
echo "This is an email message test"> $EMAILMESSAGE
echo "This is email text"
echo "This is email text" >>$EMAILMESSAGE
# send an email using /bin/mail
/bin/mail -s "$SUBJECT" "$EMAIL" < $EMAILMESSAGE
echo "done"

#!/usr/bin/somesh     bash,ksh,dash,...
[ $# -lt 4 ] && echo "usage:$0 From To Subject msgfile" >&2 && exit 1
From="$1"
To="$2"
Subject="$3"
MsgFile="$4"
cat <<EOF | /usr/lib/sendmail  -i -t
From: $From
To: $To
Subject : $Subject

$(cat $MsgFile)

EOF