Menu Close

How do I run a Haskell file in CMD?

How do I run a Haskell file in CMD?

If you have installed the Haskell Platform, open a terminal and type ghci (the name of the executable of the GHC interpreter) at the command prompt. Alternatively, if you are on Windows, you may choose WinGHCi in the Start menu. And you are presented with a prompt. The Haskell system now attentively awaits your input.

How do I run ghci?

GHCi is the interactive interface to GHC. From the command line, enter “ghci” (or “ghci -W”) followed by an optional filename to load. Note: We recommend using “ghci -W”, which tells GHC to output useful warning messages in more situations. These warnings help to avoid common programming errors.

How do I run a Haskell file?

Open a command window and navigate to the directory where you want to keep your Haskell source files. Run Haskell by typing ghci or ghci MyFile. hs. (The “i” in “GHCi” stands for “interactive”, as opposed to compiling and producing an executable file.)

Where is ghci?

appdata /ghc/ghci. conf , where appdata depends on your system, but is usually something like C:/Documents and Settings/ user /Application Data. On Unix: $HOME/. ghc/ghci.

What does ghci mean in Haskell?

GHC’s interactive environment
Introduction. GHCi is GHC’s interactive environment, in which Haskell expressions can be interactively evaluated and programs can be interpreted.

How do I write a Haskell program?


  1. 2.1 Create a directory.
  2. 2.2 Write some Haskell source.
  3. 2.3 Stick it in version control.
  4. 2.4 Add a build system.
  5. 2.5 Build your project.
  6. 2.6 Run it.
  7. 2.7 Build some haddock documentation.
  8. 2.8 (Optional) Improve your code: HLint.

How do I run Haskell on Windows?

11 Answers

  1. Install Haskell Platform. Download and install the Haskell Platform from
  2. Install Sublime Text 3. Download and install Sublime Text 3 from
  3. Enable the Package manager in Sublime. Run Sublime.
  4. Install Haskell tools.

Is Haskell old?

The first version of Haskell (“Haskell 1.0”) was defined in 1990. The committee’s efforts resulted in a series of language definitions (1.0, 1.1, 1.2, 1.3, 1.4).

Where is Grace Hopper?

Death. On New Year’s Day 1992, Hopper died in her sleep of natural causes at her home in Arlington, Virginia; she was 85 years of age. She was interred with full military honors in Arlington National Cemetery.

What does GHC mean Haskell?

Glasgow Haskell Compiler
The Glasgow Haskell Compiler (GHC) is an open-source native code compiler for the functional programming language Haskell.

Is Haskell functional programming?

Haskell (/ˈhæskəl/) is a general-purpose, statically-typed, purely functional programming language with type inference and lazy evaluation.