2017年7月8日 星期六

How to send a html email with the bash command "mail"/“sendmail”?


有時我們會需要透過Linux發送一些report mail,這時候我們就可以用mail這個指令
brook@vista:~/kernel$ ls | txt2html| mail --debug-level=7 -s 'show kernel floder' rene3210@gmail.com
mail: sendmail (/usr/sbin/sendmailn
mail: Getting auth info for UID 1003
mail: source=system, name=brook, passwd=x, uid=1003, gid=1000, gecos=,,,, dir=/home/brook, shell=/bin/bash, mailbox=/var/mail/brook, quota=0, change_uid=1
mail: Getting auth info for UID 1003
mail: source=system, name=brook, passwd=x, uid=1003, gid=1000, gecos=,,,, dir=/home/brook, shell=/bin/bash, mailbox=/var/mail/brook, quota=0, change_uid=1
mail: mu_mailer_send_message(): using From: brook@vista
mail: Sending headers...
mail: Sending body...
mail: /usr/sbin/sendmail exited with: 0
mail:

上面這個指令會送出raw data,mail看到的也是顯示一些HTML內容,如
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<meta name="generator" content="HTML::TextToHTML v2.51"/>
</head>
<body>
<p>AndroidKernel.mk<br/>
<strong>COPYING</strong><br/>
<strong>CREDITS</strong><br/>
Documentation<br/>
Kbuild<br/>
Kconfig<br/>
<strong>MAINTAINERS</strong><br/>
Makefile<br/>
<strong>README</strong><br/>
<strong>REPORTING-BUGS</strong><br/>
android<br/>
arch<br/>
block<br/>
crypto<br/>
drivers<br/>
firmware<br/>
fs<br/>
include<br/>
init<br/>
ipc<br/>
kernel<br/>
lib<br/>
linaro<br/>
mm<br/>
net<br/>
samples<br/>
scripts<br/>
security<br/>
sound<br/>
tools<br/>
usr<br/>
virt</p>

</body>
</html>

如果我們要支援"Multipurpose Internet Mail Extensions (MIME)"只要在subject後面接上"\nContent-Type: text/html"即可
brook@vista:~/kernel$ ls | txt2html| mail --debug-level=7 -s "$(echo -e "show kernel floder\nContent-Type: text/html")" rene3210@gmail.com

也可以用"sendmail"指令來傳送mail
(
echo "From: ${from}";
echo "To: ${to}";
echo "Subject: ${subject}";
echo "Content-Type: text/html";
echo "MIME-Version: 1.0";
echo "";
echo "${message}";
) | sendmail -t

(message=`ls| txt2html`
echo "From: rene3210@gmail.com;"
echo "To: rene3210@gmail.com,rene3210@gov.tw;"
echo "Subject: Quota"
echo "Content-Type: text/html;"
echo "MIME-Version: 1.0;"
echo "${message}";
echo -e"\n\n"
) |sendmail -t


參考資料: How to send a html email with the bash command “sendmail”?



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