Syncronizing your usb and hard disk with Unison

Today I decided to automate the tedious process of syncronising my SD card and hard drive (for example to get files to an e-book reader faster and be able to read from it more often (which is way better than straining your eyes reading from a monitor)). The good thing is that you can later use the same technique to sync USBs, external hard drives, even remote machines via ssh or ftp – you just tweak the paths.

First I thought of Linux’ rsync command, but Unison is suggested as a bit more user-friendly and abstract program that achieves the deed. Here’s how you do it.

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