Do you have an Amazon Kindle device and do you find the standard way of transferring files via email too uncomfortable? I’ve created a simple tool that may be of help.
I have lots of books (PDFs, PDBs, etc) on my computer. I also frequently download something from the web (HTML pages, images, …) I want to read later on my Kindle. But I am too lazy to find the data cable and I am also too lazy to open up web client and send the files as attachments. I wanted something simpler, so I created it.
The tool is called sendKindle. It’s a simple Python CLI script that takes all files specified as arguments and sends them to your Kindle device via your email provider (you need to create a configuration file with access details first).
You can find the code at:
https://github.com/kparal/sendKindle
You can check-out the code and run the tool directly, or install using easy_install:
# easy_install -U sendKindle
And then you just do:
$ sendKindle FILE...
On the first run you will be asked to create a configuration file at ~/.config/sendkindle/sendkindle.cfg with appropriate email settings (just copy and paste and change appropriately).
And that’s all, my friends. I hope some of you will find it useful.
Enjoy.
Kparal's Fedora Blog 
I needed a CLI tool to email documents to Kindle and spent an hour in configuring msmtp and mull. I wish I had found your script earlier.
Just a small comment: As the config file may contain password etc, you should force the users to set a ‘600’ mode for the file, and give an error message if the file is word readable.