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OS-X Brew : Clean it up

I’m a big fan of Homebrew on OS-X and it normally it works so well that you just do not think about it. That is a very good thing, it just works, does not get in your way and anything is good.

While I was updating/upgrading packages today, I ended up running ‘brew info’:

brew info 
146 kegs, 171208 files, 8.0G

I was surprised that I had 8 GBs of hard drive space consumed by brew packages. If you did not know it, brew does not auto-purge older packages.

From FAQ:
By default, Homebrew does not uninstall old versions of a formula, so over time you will accumulate old versions.

It had been a long time since I did a cleanup in brew and I had well over a hundred older versions of various packages that I was not using (i.e. one that were not pinned; brew pin {FORMULA), so I ran the cleanup and freed up 7.3 GB of drive space.

brew info 
146 kegs, 63167 files, 2.7G

Clean up everything at once:

brew cleanup

Clean up just one formula:

brew cleanup {FORMULA}

Do a dry run to see what would be cleaned up:

brew cleanup -n