I interrupted Homebrew installation from the Terminal by pressing crtl+c because I realized I have little space left in the hard disk.

Now I want to clean the data that was incompletely written to my hard disk. What should I do?

I ran following commands in the Terminal to install:

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

This was interrupted. Now I keep getting message of low disc space.