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I bought a 750GB external hard disk a couple months ago. So the first time I copied all my stuff (documents, photos, music ...).

After a while I wanted to update the data in my external disk, but I didn't remember exactly which files did I create, modify or delete since the last update. So I just ended up deleting everything from the external hard disk and coping everything back in.

There has to be a better solution right? Something that acts like a version controller.

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Version Controller for Documents, photos, music seems new to me.Does copy & paste doesn't gives you Overwrite files option. I am confused by the question. –  tijybba May 17 '12 at 17:57
    
The overwrite option is just like coping it all back in (just overwrites everything without checking if it was modified or not) –  juliomalegria May 17 '12 at 18:02
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1 Answer

For Data files [Documents, photos, music ,etc] the logical method would be by replacing the older files with the new one by considering the info parameters for example:Date of creation of Modification.I guess you will have to write a script for that to do your job.

OR

Alternately by removing the duplicate files after copying or merging the new ones. For reference script like here ,which searches for the duplicate files and merges over old files.

For GIU purpose there is fdupes and also Fslint to do it manually.

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