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I'd like to know to see which files are getting backed up by my time machine? I often see a large amount of data being transfered and I'm not sure sure what it is.

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possible duplicate of How can I use tmutil to figure out which files just got deleted? –  patrix Oct 15 '12 at 17:05

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up vote 5 down vote accepted

The command tmutil compare lets you compare file lists if you don't want to do it using ls or other commands that can show differences in files and folders like rsync and many graphical diff programs.

Many people adore BackupLoupe as well. It makes a powerful database of what files are included with each backup interval.

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Thanks! i'll try it out when I'm by my TimeCapsule) I think this is exactly what I was looking for)) –  alexus Oct 15 '12 at 17:17
    
Why not edit the question a bit to make it more clear what you were wanting. It'll likely get you some up votes if you care for it and put a real title on it rather than a fragment of a phrase. –  bmike Oct 15 '12 at 17:25
    
A zero cost alternative to BackupLoupe is TimeTracker. Does the job well enough for me. –  Percival Ulysses Oct 15 '12 at 21:37

If you're interested in seeing what files are being read as the backup happens, you can use this command:

sudo opensnoop -n backupd | grep -v 'Time Machine Backups'
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You can use timedog for that.

timedog is a Perl script that displays the set of files that were saved for any given backup created by Mac OS X Time Machine. By default it shows those files that were saved in the most recent backup. The listing includes the file sizes before and after, as well as a total file count and size. The script includes an option to summarize changes to a particular directory depth, producing a more concise display, helping to get an understanding of which areas of your system are taking up the most space in the backups. It can also sort by size, and/or omit files below a given size.

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thank you, i'll check it out) –  alexus Nov 26 '13 at 17:23

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