---
name: "futhark-repl"
section: "1"
platform: "linux"
package: "futhark"
version: "0.25.27-1+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/futhark-repl"
---

# futhark-repl(1)

interactive Futhark read-eval-print-loop

## NAME

futhark-repl - interactive Futhark read-eval-print-loop

## SYNOPSIS

futhark repl \[program.fut\]

## DESCRIPTION

Start an interactive Futhark session.  This will let you interactively enter expressions and declarations which are then immediately interpreted.  If the entered line can be either a declaration or an expression, it is assumed to be a declaration.  The input msut fit on a single line.

Futhark source files can be loaded using the **:load** command.  This will erase any interactively entered definitions.  Use the **:help** command to see a list of commands.  All commands are prefixed with a colon.

**futhark repl** uses the Futhark interpreter, which grants access to the **#\[trace\]** and **#\[break\]** attributes.  See *futhark-run* for a description.

## OPTIONS

- **-h**

  Print help text to standard output and exit.

- **-V**

  Print version information on standard output and exit.

## SEE ALSO

*futhark-run*, *futhark-test*

## COPYRIGHT

2013-2020, DIKU, University of Copenhagen