fun> Fun - Fun CLI

Reference for the fun command-line interface.

For a complete usage guide (including REPL details, environment variables, include paths, examples, and install locations), see fun.md.

Synopsis

fun [options]  [-- args...]
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If no script is supplied and interactive mode is available, `fun` starts a REPL (see [repl.md](./repl/)).

## Common options
- `-i`, `--repl` - start an interactive REPL
- `-v`, `--version` - print version and exit
- `-h`, `--help` - show help and exit

Options may vary between versions; run `fun --help` to see what your build supports.

## Exit codes
- `0` - success
- non-zero - error during parse, compile, or runtime

## Includes and library paths
- `FUN_LIB_DIR` - environment variable that points to the stdlib location; when running from the repo, set this to `./lib`.
- `DEFAULT_LIB_DIR` - compiled-in fallback path determined at build/install time.

See also: [includes.md](./includes/) for namespaced includes and search order.

## Examples
Run a script:
FUN_LIB_DIR=./lib ./build/fun examples/hello.fun
Start the REPL:
./build/fun -i

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