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FreeFileSync - an open-source file and folder comparison and synchronization tool

We often try to keep a backup of all our data in our computer to a external storage such as HDD, network storage etc.  Over a period of time maintaining a synchronization between data on the computer and external storage becomes if you don not have good backup tool. FreeFileSync  helps us in resolving this poblem.  FreeFileSync is very easy to use and syncs the data in quick time. This tool can be downloaded here.


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How to find firmware or boot ROM version in Mac OS X

Firmware and boot ROM version of your mac can be found in two ways.
Way 1 :
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On the right side panel Under hardware overview section, we can see Boot ROM Version and SMC (Firmware) Version.

Way 2 :
Run the below command in terminal to get boot ROM version and SMC(firmware) version :
$ system_profiler SPHardwareDataType | grep -i "Version" | awk -F ':' '{print $1 $2}'

How to decrypt the Filevault encrypted volume using Recovery HD ?

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