Does anyone knows how to get the link at the point in Org-mode?
For example:
Get the "Data/Books/kk.epub" part of [[file:Data/Books/kk.epub][kk.epub]]

[stardiviner]           <Hack this world!>      GPG key ID: 47C32433
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On Thu, Jul 13, 2017 at 8:29 AM, numbchild@gmail.com <numbchild@gmail.com>
wrote:

> 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]]
>
> [stardiviner]           <Hack this world!>      GPG key ID: 47C32433
> IRC(freeenode): stardiviner                     Twitter:  @numbchild
> Key fingerprint = 9BAA 92BC CDDD B9EF 3B36  CB99 B8C4 B8E5 47C3 2433
> Blog: http://stardiviner.github.io/
>