You tried to cat a binary file and now your terminal displays nothing but gibberish? Just type reset (it may look like ⎼␊⎽␊├).
It has taken me more than 10 years to learn this.
[UPDATE] Interestingly, this doesn’t work in my (alas, ancient) Mac OS X 10.3.9 terminal. Any tips? Also, why did curl URL_TO_BINARY hose my terminal in the first place?
Procrastiblog 