Common Usage Database (cudb)
cudb is a collection of usages for the CLI in Unix-like environments. Initially the data will only be available through the website, but we plan to offer a console application, API and data dump in the near future.
Contribute
The best way to contribute to cudb is by adding usages or reporting technical issues with the website.
Community
cudb currently resides in #cudb on freenode and has a Google group.