mix

mix [task] [options]

mix is the build tool that ships with Elixir. It manages project creation, dependency resolution, compilation, testing, code formatting, and releases. All functionality is exposed through a task-based system where each `mix task` maps to a Mix.Task module.Dependencies are declared in `mix.exs` and fetched from the Hex package manager. The active environment is controlled by the `MIX_ENV` variable, which defaults to `dev` (and `test` when running `mix test`). Custom tasks can be created by defining modules under `Mix.Tasks.*`.

new NAME

Create a new Elixir project in a directory named NAME.

Fetch all project dependencies listed in `mix.exs`.

Compile fetched dependencies.

Update a specific dependency (or `--all` to update all).

Compile the current project and its dependencies.

Run the project's test suite.

Format Elixir source files according to the standard formatter.

Execute a script or expression within the project context.

Remove build artifacts.

Assemble a self-contained release for deployment.

Run multiple tasks sequentially in one command.

List all available tasks, or show help for a specific task.

Requires Elixir to be installed. Package installation requires Hex (`mix local.hex`). The `MIX_ENV` environment variable controls which configuration is active (`dev`, `test`, `prod`).

Mix was created as the standard build tool for Elixir by José Valim and ships with every Elixir installation.

elixir(1), iex(1)