Running Haskell code

cat input.txt | stack solution.hs "part1"
cat input.txt | stack solution.hs "part2"

Running J code (after entering ijconsole)

0!:1 < 'solution.ijs'

Running Q code

// testing any file
q solution.q -q -filename "inputTest1.txt"
// testing "production" file
q solution.q -q

Running Rust code

// before you run first time: cargo install rust-script
./solution.rs