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nsforge/gist:bf7c3d3ed2aba458e21f

Created November 18, 2014 11:25
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One-liner to delete your oldest Time Machine backup
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gistfile1.sh
sudo tmutil delete "`tmutil listbackups | sed -n 1p`"
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nsforge commented Nov 18, 2014

This came in handy after adjusting the disk quota for TM backups on my NAS - I ran this repeatedly until my Time Machine backups were down to a reasonable size.

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nsforge commented Nov 19, 2014

In order to actually free up the space on your NAS or external HDD, you also need to run:

hdiutil compact "/Volumes/Time Machine/MY_COMPUTER.sparsebundle"

With the actual path to your Time Machine .sparsebundle.

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