How can I fix permissions for files in the /var/folders/zz?
There are a lot of file under /var/folders/zz that seem to be application caches or some sort.
I am interested in this because, it appears that if the permissions of these folders get set incorrectly (and there is a lot of "help" out there that suggests changing these at one time or another) it can easily break the applications that use them, like Apple Software Update, Apple Setup Assistant, Adobe Flash Installer, and many others.
Note: This asks a different (although similar) question to the one found in Can I delete files or folders from /private/var/folders/?, and provides a correct & concise answer to this specific question. It is also not about clearing space, but about fixing permissions on these files, which when incorrect WILL break applications.