Interprets Brainfuck scripts
Thanks to www.brainfuck.org for many of the tests I've blatantly stolen.
bfi <FILE>
or
bfi <TEXT>
where <TEXT>
is interpreted as Brainfuck, i.e.
bfi '+++++++[>+++++++<-]>++.-----.+++.+++.'
You'll need Cargo, which comes with Rust.
Clone the repository, then
cargo install --path path/to/bfi