[O] Want help for a helper function which send current link file under point to Kindle path.

[address@hidden]

I want to write a helper function to send the link file (usually ebooks) under the point to Kindle path like (/run/media/username/Kindle/documents/).

Hope this function can provide the following functionalities:

- check whether the source file (ebook) exist in Kindle?

- check the source file format, if not Kindle supported, then convert it with command `ebook-convert` which is comes from program "Calibre".

I wander how to get the link actual path under the point?

For example, org link like this:

[[file:Data/Books/kk.epub][kk.epub]]

[[file+sys:/home/username/Documents/kk2.mobi][kk2.mobi]]

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