Haskell

Installation

Haskellをインストールする.

$ curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | sh

Version

$ ghc --version
The Glorious Glasgow Haskell Compilation System, version 9.4.8

Example

Code

hello.hs:

main = putStrLn "Hello, World!"

Terminal

ghc Ver.

$ ghc hello.hs
[1 of 2] Compiling Main             ( hello.hs, hello.o ) [Missing object file]
[2 of 2] Linking hello
$ ./hello
Hello, World!

runghc Ver.

$ runghc hello.hs
Hello, World!

REPL Ver.

$ ghci
GHCi, version 9.4.8: https://www.haskell.org/ghc/  :? for help
ghci> putStrLn "Hello, World!"
Hello, World!