gmailでメール送信するシェルスクリプト

gmail.sh

#!/bin/bash
user="[email protected]"
pass="yourpassword"
to="[email protected]"

( sleep 1
  echo "EHLO `hostname`"
  sleep 1
  echo "AUTH PLAIN $(echo -en "$user\0$user\0$pass" | base64)"
  sleep 1
  echo "MAIL FROM: <$user>"
  sleep 1
  echo "rCPT TO: <$to>"
  sleep 1
  echo "DATA"
  sleep 1
  ( echo "Subject: THIS IS TEST"
    echo "From: $user"
    echo "To: $to"
    echo ""
    echo "hello gmail"
    echo "hehehe"
    echo "."
  ) | perl -pe's/(?<!\r)\n/\r\n/'
  sleep 1
  echo "quit"
) | openssl s_client -connect smtp.gmail.com:465

@kazuihitoshi bash にしておきました