How to send HTML email using linux command line

问题

I need to send email with html format. I have only linux command line and command \"mail\".

Currently have used:

echo \"To: address@example.com\" > /var/www/report.csv
echo \"Subject: Subject\" >> /var/www/report.csv
echo \"Content-Type: text/html; charset=\\\"us-ascii\\\"\" >> /var/www/report.csv

echo \"<html>\" >> /var/www/report.csv
mysql -u ***** -p***** -H -e \"select * from users LIMIT 20\" dev >> /var/www/report.csv
echo \"</html>\" >> /var/www/report.csv

mail -s \"Built notification\" address@example.com < /var/www/report.csv

But in my mail-agent i get only plain/text.

$\"alt$

回答1:

This worked for me:

echo "<b>HTML Message goes here</b>" | mail -s "$(echo -e "This is the subject\nContent-Type: text/html")" foo@example.com

回答2:

My version of mail does not have --append and it too smart for the echo -e \n-trick (it simply replaces \n with space). It does, however, have -a:

mail -a "Content-type: text/html" -s "Built notification" address@example.com < /var/www/report.html

回答3:

Make a file called tmp.html and put the following line in it:

<b>my bold message</b>

Then paste all this into the commandline: (with the parenthesis and all).

(
  echo To: youremail@blah.com
  echo From: el@defiant.com
  echo "Content-Type: text/html; "
  echo Subject: a logfile
  echo
  cat tmp.html
) | sendmail -t

The mail will be dispatched. And the message appeared as bold instead of with the <b> tags.

Source:
How to send a html email with the bash command "sendmail"?

回答4:

The problem is that when redirecting a file into 'mail' like that, it's used for the message body only. Any headers you embed in the file will go into the body instead.

Try:

mail --append="Content-type: text/html" -s "Built notification" address@example.com < /var/www/report.csv

--append lets you add arbitrary headers to the mail, which is where you should specify the content-type and content-disposition. There's no need to embed the To and Subject headers in your file, or specify them with --append, since you're implicitly setting them on the command line already (-s is the subject, and address@example.com automatically becomes the To).

回答5:

On OS X (10.9.4), cat works, and is easier if your email is already in a file:

cat email_template.html  | mail -s "$(echo -e "Test\nContent-Type: text/html")" karl@marx.com

回答6:

With heirloom-mailx you can change sendmail program to your hook script, replace headers there and then use sendmail.

The script I use (~/bin/sendmail-hook):

#!/bin/bash

sed '1,/^$/{
s,^\(Content-Type: \).*$,\1text/html; charset=utf-8,g
s,^\(Content-Transfer-Encoding: \).*$,\18bit,g
}' | sendmail $@

This script changes the values in the mail header as follows:

Content-Type: to text/html; charset=utf-8
Content-Transfer-Encoding: to 8bit (not sure if this is really needed).

To send HTML email:

mail -Ssendmail='~/bin/sendmail-hook' \
    -s "Built notification" address@example.com < /var/www/report.csv

回答7:

Very old question, however it ranked high when I googled a question about this.

Find the answer here:

Sending HTML mail using a shell script

回答8:

I was struggling with similar problem (with mail) in one of my git's post_receive hooks and finally I found out, that sendmail actually works better for that kind of things, especially if you know a bit of how e-mails are constructed (and it seems like you know). I know this answer comes very late, but maybe it will be of some use to others too. I made use of heredoc operator and use of the feature, that it expands variables, so it can also run inlined scripts. Just check this out (bash script):

#!/bin/bash
recipients=(
    'john@example.com'
    'marry@not-so-an.example.com'
#   'naah@not.this.one'
);
sender='highly-automated-reporter@example.com';
subject='Oh, who really cares, seriously...';
sendmail -t <<-MAIL
    From: ${sender}
    `for r in "${recipients[@]}"; do echo "To: ${r}"; done;`
    Subject: ${subject}
    Content-Type: text/html; charset=UTF-8

    <html><head><meta charset="UTF-8"/></head>
    <body><p>Ladies and gents, here comes the report!</p>
    <pre>`mysql -u ***** -p***** -H -e "SELECT * FROM users LIMIT 20"`</pre>
    </body></html>
MAIL

Note of backticks in the MAIL part to generate some output and remember, that <<- operator strips only tabs (not spaces) from the beginning of lines, so in that case copy-paste will not work (you need to replace indentation with proper tabs). Or use << operator and make no indentation at all. Hope this will help someone. Of course you can use backticks outside o MAIL part and save the output into some variable, that you can later use in the MAIL part — matter of taste and readability. And I know, #!/bin/bash does not always work on every system.

回答9:

I found a really easy solution: add to the mail command the modifier -aContent-Type:text/html.

In your case would be:

mail -aContent-Type:text/html -s "Built notification" address@example.com < /var/www/report.csv

回答10:

you should use "append" mode redirection >> instead of >

回答11:

Try with :

echo "To: address@example.com" > /var/www/report.csv
echo "Subject: Subject" >> /var/www/report.csv
echo "MIME-Version: 1.0" >> /var/www/report.csv
echo "Content-Type: text/html; charset=\"us-ascii\"" >> /var/www/report.csv
echo "Content-Disposition: inline" >> /var/www/report.csv

echo "<html>" >> /var/www/report.csv
mysql -u ***** -p***** -H -e "select * from users LIMIT 20" dev >> /var/www/report.csv
echo "</html>" >> /var/www/report.csv

mail -s "Built notification" address@example.com < /var/www/report.csv

来源：https://stackoverflow.com/questions/2591755/how-to-send-html-email-using-linux-command-line

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