I remember enjoying these types of threads here in the past.
I discovered this particularly useful, powerful, and lightning fast duplicate
finder (and more) recently, so I thought I'd share:
*rmlint*
DESCRIPTION
rmlint finds space waste and other broken things on your filesystem.
Types of waste include:
· Duplicate files and directories.
· Nonstripped Binaries (Binaries with debug symbols).
· Broken links.
· Empty files and directories.
· Files with broken user or group id.
rmlint will not delete any files. It does however produce executable
output (for example a shell script) to help you delete the files if you want
to.
Gentle guide to rmlint:
http://rmlint.readthedocs.io/en/latest/tutorial.html
Do you have other gems? Please share :)