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FreeFileSync – Compare and Synchronize Files in Ubuntu
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============================================================
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FreeFileSync is a free, open source and cross platform folder comparison and synchronization software, which helps you [synchronize files and folders on Linux][2], Windows and Mac OS.
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It is portable and can also be installed locally on a system, it’s feature-rich and is intended to save time in setting up and executing backup operations while having attractive graphical interface as well.
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#### FreeFileSync Features
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Below are it’s key features:
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1. It can synchronize network shares and local disks.
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2. It can synchronize MTP devices (Android, iPhone, tablet, digital camera).
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3. It can also synchronize via [SFTP (SSH File Transfer Protocol)][1].
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4. It can identify moved and renamed files and folders.
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5. Displays disk space usage with directory trees.
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6. Supports copying locked files (Volume Shadow Copy Service).
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7. Identifies conflicts and propagate deletions.
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8. Supports comparison of files by content.
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9. It can be configured to handle Symbolic Links.
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10. Supports automation of sync as a batch job.
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11. Enables processing of multiple folder pairs.
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12. Supports in-depth and detailed error reporting.
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13. Supports copying of NTFS extended attributes such as (compressed, encrypted, sparse).
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14. Also supports copying of NTFS security permissions and NTFS Alternate Data Streams.
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15. Support long file paths with more than 260 characters.
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16. Supports Fail-safe file copy prevents data corruption.
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17. Allows expanding of environment variables such as %UserProfile%.
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18. Supports accessing of variable drive letters by volume name (USB sticks).
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19. Supports managing of versions of deleted/updated files.
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20. Prevent disc space issues via optimal sync sequence.
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21. Supports full Unicode.
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22. Offers a highly optimized run time performance.
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23. Supports filters to include and exclude files plus lots more.
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### How To Install FreeFileSync in Ubuntu Linux
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We will add official FreeFileSync PPA, which is available for Ubuntu 14.04 and Ubuntu 15.10 only, then update the system repository list and install it like so:
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```
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-------------- On Ubuntu 14.04 and 15.10 --------------
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$ sudo apt-add-repository ppa:freefilesync/ffs
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$ sudo apt-get update
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$ sudo apt-get install freefilesync
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```
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On Ubuntu 16.04 and newer version, go to the [FreeFileSync download page][3] and get the appropriate package file for Ubuntu and Debian Linux.
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Next, move into the Download folder, extract the FreeFileSync_*.tar.gz into the /opt directory as follows:
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```
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$ cd Downloads/
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$ sudo tar xvf FreeFileSync_*.tar.gz -C /opt/
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$ cd /opt/
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$ ls
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$ sudo unzip FreeFileSync/Resources.zip -d /opt/FreeFileSync/Resources/
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```
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Now we will create an application launcher (.desktop file) using Gnome Panel. To view examples of `.desktop`files on your system, list the contents of the directory /usr/share/applications:
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```
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$ ls /usr/share/applications
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```
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In case you do not have Gnome Panel installed, type the command below to install it:
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```
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$ sudo apt-get install --no-install-recommends gnome-panel
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```
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Next, run the command below to create the application launcher:
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```
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$ sudo gnome-desktop-item-edit /usr/share/applications/ --create-new
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```
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And define the values below:
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```
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Type: Application
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Name: FreeFileSync
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Command: /opt/FreeFileSync/FreeFileSync
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Comment: Folder Comparison and Synchronization
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```
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To add an icon for the launcher, simply clicking on the spring icon to select it: /opt/FreeFileSync/Resources/FreeFileSync.png.
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When you have set all the above, click OK create it.
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[
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][4]
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Create Desktop Launcher
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If you don’t want to create desktop launcher, you can start FreeFileSync from the directory itself.
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```
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$ ./FreeFileSync
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```
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### How to Use FreeFileSync in Ubuntu
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In Ubuntu, search for FreeFileSync in the Unity Dash, whereas in Linux Mint, search for it in the System Menu, and click on the FreeFileSync icon to open it.
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[
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][5]
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FreeFileSync
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#### Compare Two Folders Using FreeFileSync
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In the example below, we’ll use:
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```
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Source Folder: /home/aaronkilik/bin
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Destination Folder: /media/aaronkilik/J_CPRA_X86F/scripts
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```
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To compare the file time and size of the two folders (default setting), simply click on the Compare button.
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[
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][6]
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Compare Two Folders in Linux
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Press `F6` to change what to compare by default, in the two folders: file time and size, content or file size from the interface below. Note that the meaning of the each option you select is included as well.
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[
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][7]
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File Comparison Settings
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#### Synchronization Two Folders Using FreeFileSync
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You can start by comparing the two folders, and then click on Synchronize button, to start the synchronization process; click Start from the dialog box the appears thereafter:
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```
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Source Folder: /home/aaronkilik/Desktop/tecmint-files
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Destination Folder: /media/aaronkilik/Data/Tecmint
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```
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[
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][8]
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Compare and Synchronize Two Folders
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[
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][9]
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Start File Synchronization
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[
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][10]
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File Synchronization Completed
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To set the default synchronization option: two way, mirror, update or custom, from the following interface; press `F8`. The meaning of the each option is included there.
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[
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][11]
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File Synchronization Settings
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For more information, visit FreeFileSync homepage at [http://www.freefilesync.org/][12]
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That’s all! In this article, we showed you how to install FreeFileSync in Ubuntu and it’s derivatives such as Linux Mint, Kubuntu and many more. Drop your comments via the feedback section below.
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--------------------------------------------------------------------------------
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作者简介：
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I am Ravi Saive, creator of TecMint. A Computer Geek and Linux Guru who loves to share tricks and tips on Internet. Most Of My Servers runs on Open Source Platform called Linux. Follow Me: [Twitter][00], [Facebook][01] and [Google+][02]
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--------------------------------------------------------------------------------
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via: http://www.tecmint.com/freefilesync-compare-synchronize-files-in-ubuntu/
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作者：[Ravi Saive ][a]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]:http://www.tecmint.com/author/admin/
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[00]:https://twitter.com/ravisaive
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[01]:https://www.facebook.com/ravi.saive
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[02]:https://plus.google.com/u/0/+RaviSaive
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[1]:http://www.tecmint.com/sftp-command-examples/
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[2]:http://www.tecmint.com/rsync-local-remote-file-synchronization-commands/
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[3]:http://www.freefilesync.org/download.php
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[4]:http://www.tecmint.com/wp-content/uploads/2017/03/Create-Desktop-Launcher.png
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[5]:http://www.tecmint.com/wp-content/uploads/2017/03/FreeFileSync-launched.png
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[6]:http://www.tecmint.com/wp-content/uploads/2017/03/compare-two-folders.png
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[7]:http://www.tecmint.com/wp-content/uploads/2017/03/comparison-settings.png
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[8]:http://www.tecmint.com/wp-content/uploads/2017/03/compare-and-sychronize-two-folders.png
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[9]:http://www.tecmint.com/wp-content/uploads/2017/03/start-sychronization.png
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[10]:http://www.tecmint.com/wp-content/uploads/2017/03/synchronization-complete.png
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[11]:http://www.tecmint.com/wp-content/uploads/2017/03/synchronization-setttings.png
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[12]:http://www.freefilesync.org/
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[13]:http://www.tecmint.com/author/admin/
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[14]:http://www.tecmint.com/10-useful-free-linux-ebooks-for-newbies-and-administrators/
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[15]:http://www.tecmint.com/free-linux-shell-scripting-books/
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