$ mix new kv --module KV

* creating README.md
* creating .formatter.exs
* creating .gitignore
* creating mix.exs
* creating config
* creating config/config.exs
* creating lib
* creating lib/kv.ex
* creating test
* creating test/test_helper.exs
* creating test/kv_test.exs

Your Mix project was created successfully.
You can use "mix" to compile it, test it, and more:

    cd kv
    mix test

Run "mix help" for more commands.

defmodule KV.MixProject do
  use Mix.Project

  def project do
    [
      app: :kv,
      version: "0.1.0",
      elixir: "~> 1.6",
      start_permanent: Mix.env() == :prod,
      deps: deps()
    ]
  end

  # Run "mix help compile.app" to learn about applications.
  def application do
    [
      extra_applications: [:logger]
    ]
  end

  # Run "mix help deps" to learn about dependencies.
  defp deps do
    [
      # {:dep_from_hexpm, "~> 0.3.0"},
      # {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"},
    ]
  end
end

defmodule KV do
  @moduledoc """
  Documentation for KV.
  """

  @doc """
  Hello world.

  ## Examples

      iex> KV.hello
      :world

  """
  def hello do
    :world
  end
end

$ cd kv
$ mix compile

Compiling 1 file (.ex)
Generated kv app

$ iex -S mix

iex> KV.hello
:world

defmodule KVTest do
  use ExUnit.Case
  doctest KV

  test "greets the world" do
    assert KV.hello() == :world
  end
end

ExUnit.start()

$ mix test
..

Finished in 0.03 seconds
1 doctest, 1 test, 0 failures

Randomized with seed 71551

assert KV.hello() == :oops  # :world

$ mix test


  1) test greets the world (KVTest)
     test/kv_test.exs:5
     Assertion with == failed
     code:  assert KV.hello() == :oops
     left:  :world
     right: :oops
     stacktrace:
       test/kv_test.exs:6: (test)

.

Finished in 0.03 seconds
1 doctest, 1 test, 1 failure

Randomized with seed 828995

$ mix test test/kv_test.exs:5

defmodule KVTest
do

  use ExUnit.Case

  doctest KV

  test "greets the world" do

    assert KV.hello()
    == :world

  end
end

$ mix format

defmodule KVTest do
  use ExUnit.Case

  doctest KV

  test "greets the world" do
    assert KV.hello() == :world
  end
end

defmodule KV.MixProject do

  def project do
    [

      start_permanent: Mix.env() == :prod,

    ]
  end

end

$ MIX_ENV=prod mix compile

$ mix help
mix                   # Runs the default task (current: "mix run")
mix app.start         # Starts all registered apps
mix app.tree          # Prints the application tree
mix archive           # Lists installed archives
mix archive.build     # Archives this project into a .ez file
mix archive.install   # Installs an archive locally
mix archive.uninstall # Uninstalls archives
mix clean             # Deletes generated application files
mix cmd               # Executes the given command
mix compile           # Compiles source files
mix deps              # Lists dependencies and their status
mix deps.clean        # Deletes the given dependencies' files
mix deps.compile      # Compiles dependencies
mix deps.get          # Gets all out of date dependencies
mix deps.tree         # Prints the dependency tree
mix deps.unlock       # Unlocks the given dependencies
mix deps.update       # Updates the given dependencies
mix do                # Executes the tasks separated by comma
mix escript           # Lists installed escripts
mix escript.build     # Builds an escript for the project
mix escript.install   # Installs an escript locally
mix escript.uninstall # Uninstalls escripts
mix format            # Formats the given files/patterns
mix help              # Prints help information for tasks
mix hex               # Prints Hex help information
mix hex.audit         # Shows retired Hex deps for the current project
mix hex.build         # Builds a new package version locally
mix hex.config        # Reads, updates or deletes local Hex config
mix hex.docs          # Fetches or opens documentation of a package
mix hex.info          # Prints Hex information
mix hex.organization  # Manages Hex.pm organizations
mix hex.outdated      # Shows outdated Hex deps for the current project
mix hex.owner         # Manages Hex package ownership
mix hex.publish       # Publishes a new package version
mix hex.repo          # Manages Hex repositories
mix hex.retire        # Retires a package version
mix hex.search        # Searches for package names
mix hex.user          # Manages your Hex user account
mix loadconfig        # Loads and persists the given configuration
mix local             # Lists local tasks
mix local.hex         # Installs Hex locally
mix local.phoenix     # Updates Phoenix locally
mix local.phx         # Updates the Phoenix project generator locally
mix local.public_keys # Manages public keys
mix local.rebar       # Installs Rebar locally
mix new               # Creates a new Elixir project
mix phoenix.new       # Creates a new Phoenix v1.3.2 application
mix phx.new           # Creates a new Phoenix v1.3.2 application
mix phx.new.ecto      # Creates a new Ecto project within an umbrella project
mix phx.new.web       # Creates a new Phoenix web project within an umbrella project
mix profile.cprof     # Profiles the given file or expression with cprof
mix profile.eprof     # Profiles the given file or expression with eprof
mix profile.fprof     # Profiles the given file or expression with fprof
mix run               # Starts and runs the current application
mix test              # Runs a project's tests
mix xref              # Performs cross reference checks
iex -S mix            # Starts IEx and runs the default task