I have a file called tmp.0.sDQWBe located on my MacBook/Macintosh HD /private/var/folders/k1/(a ton of random text)/T/tmp.0.sDQWBe. The file is 13.2GB and I have no idea what it is.

I want to delete it so it can free up space on my computer. What is it, and can I delete it?

  • If you reboot the Mac does the file still exist and at that size? – user3439894 Feb 8 '16 at 22:02
  • Yes it does, it is weird. – Landon Feb 8 '16 at 22:06
  • The fact that the file's name starts with "tmp." is a good indication that it's meant to be temporary and given its location, I'd say it was safe to delete. That said, it goes without saying... always make sure you have a backup just in case. In Terminal, I'd move it to a different name, adding say ".bak" to it, then reboot and see if the file is recreated. If it's not and everything appears to be okay, then delete it. – user3439894 Feb 8 '16 at 22:16

A simple reboot may purge some of this. /var is generally for variable files (caches, logs, etc). You can check to see which process is using the file before deleting, if it is indeed open. There are a number of ways to do this via the terminal.

After a little research I found this gem of an article, What is "/var/folders"?.

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