The file `bdcalc` is a stand-alone excutable binary.
Unzip the downloaded file, copy the executable file to a directory on the PATH, and give it execute permissions.

	unzip bdcalc-xxxx.zip
	sudo cp bdcalc /usr/local/bin
	sudo chmod +x /usr/local/bin/bdcalc
	
<http://www.di-mgt.com.au/bdcalc.html>

To avoid "funny" characters like ^[[A ^[[B ^[[C ^[[D when using the arrow keys on a Linux platform, 
install rlwrap and start bdcalc from the command line with

	rlwrap bdcalc

This will make the arrow keys work as expected and give you a proper history of previous commands 
by using the `up' arrow (just like on Windows!).