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2010-09-28 03:34:37 +02:00

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send mail from command line with attached file
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<p>I had to send a mail using only command line.
I was surprised it isn&rsquo;t straightforward at all.
I didn&rsquo;t had <code>pine</code> nor <code>mutt</code> or anything like that.
Just <code>mail</code> and <code>mailx</code>.</p>
<p>What Internet say (via google) is</p>
<pre class="twilight">
uuencode fic.jpg fic.jpg <span class="Keyword">|</span> mail -s <span class="String"><span class="String">'</span>Subject<span class="String">'</span></span>
</pre>
<p>I tried it.
And it works almost each times.
But for my file, it didn&rsquo;t worked.
I compressed it to <code>.gz</code>, <code>.bz2</code> and <code>.zip</code>.
Using <code>.bz2</code> format it worked nicely, but not with other formats.
Instead of having an attached file I saw this in my email.</p>
<pre>
begin 664 fic.jpg
M(R$O=7-R+V)I;B]E;G8@&gt;G-H"GAL&lt;STD,0H*9F]R(&QI;F4@:6X@)"@\("1X
M;',@*0H@("`@9&amp;-R/20H96-H;R`D;&amp;EN92!\(&amp;%W:R`M1EP[("=[&lt;')I;G0@
...
M93U&lt;(FUO='-&lt;(CX\=F%L=64^/&amp;ET96T@;F%M93U&lt;(F-T&gt;%]M8UPB/BD\=F%L
M=64O/B@\+VET96T^*2-&lt;)#$\=F%L=64^)&amp;ME&gt;7=O&lt;F1S/"]V86QU93Y&lt;)#(C
end
</pre>
<p>Not really readable.
After some research I found the solution.
Use MIME instead of <code>uuencode</code>.</p>
<p>Finally I made it manually using <code>sendmail</code>.
I didn&rsquo;t dare to use <code>telnet</code>.
The command to use is:</p>
<pre class="twilight">
sendmail -t -oi <span class="Keyword">&lt;</span> mailcontent.txt
</pre>
<p>Of course you need to create the <code>mailcontent.txt</code> file.
It should contains:</p>
<pre>
From: from@mail.com
To: to@mail.com
Subject: View the attached file
Mime-Version: 1.0
Content-Type: multipart/mixed; boundary="-"
This is a MIME encoded message. Decode it with "Decoder"
or any other MIME reading software. Decoder is available
at &lt;http://www.etresoft.com&gt;.
---
Content-Type: image/jpeg; name="fic.jpg"
Content-Transfer-Encoding: base64
Content-Disposition: inline; filename="fic.jpg"
H4sICB6Ke0wAA2Rjcl93aXRob3V0X2tleXdvcmQuY3N2ANSdW5ubOJPH7/e7
7Brw+dmrTk8yk7yTSTaZeWd2b/TIIGy6MRAE7ng+/VaJgwF3g522SsxN2+3T
/4eOJamqmARP+yibvI8ykUYim+x5EE2euBfIyd3byZ+fvvzr7svbu8ndTx/f
...
</pre>
<p>And to obtain the &ldquo;encoded&rdquo; file in base64 I used:</p>
<p><code classs="zsh">
uuencode -m fic.jpg fic.jpg
</code></p>
<p>That is all.
Sometimes technology is so easy to use.
If I need it another time I should consider to make a shell script to automatize this.</p>
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Created: 08/31/2010
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