Hello Linux Geeksters. As you may know, FreeFileSync is a multi-platform, open-source folder comparison and synchronization tool, available on Linux, Windows and Mac OS X. Among others, it has support for performing binary file comparison, handle symlinks, copy NTFS extended attributes and security permissions, fail-safe file copy, include/exclude file via filter, optimized runtime performance, detailed error reporting and automate as a batch job.

The latest version available is FreeFileSync 6.6, which has been recently released.
In this article I will show you how to install FreeFileSync 6.6 on Ubuntu 14.04 Trusty Tahr, Linux Mint 17 Qiana, Pinguy OS 14.04, Elementary OS 0.3 Isis, LXLE 14.04 and their derivative systems.
Because it is available via PPA, installing FreeFileSync 6.6 on Ubuntu 14.04 and derivative systems is easy. All you have to do is add the ppa to your system, update the local repository index and install the freefilesync package. Like this:
$ sudo add-apt-repository ppa:freefilesync/ffs
$ sudo apt-get update
$ sudo apt-get install freefilesync
Optional, to remove freefilesync, do:
$ sudo apt-get remove freefilesync