プログラミング言語のバージョン管理を行うためにanyenvをインストール

$ brew install anyenv

$ anyenv init

$ export PATH="$HOME/.anyenv/bin:$PATH"
$ echo eval "$(anyenv init -)" >> ~/.bash_profile
$ anyenv install --init

$ anyenv help
Usage: anyenv <command> [<args>]

Some useful anyenv commands are:
   commands            List all available anyenv commands
   local               Show the local application-specific Any version
   global              Show the global Any version
   install             Install a **env
   uninstall           Uninstall a specific **anv
   version             Show the current Any version and its origin
   versions            List all Any versions available to **env

See `anyenv help <command>' for information on a specific command.
For full documentation, see: https://github.com/anyenv/anyenv#readme

$ anyenv install --help
Usage: anyenv install [-f|--force] [-s/--skip-existing] <**env>
       anyenv install -l|--list
       anyenv install --init       [git-url] [git-ref]
       anyenv install --force-init [git-url] [git-ref]
       anyenv install --update

  -l/--list          List all available **envs
  -f/--force         Install even if the **env appears to be installed already
  -s/--skip-existing Skip if the version appears to be installed already
  --init             Initialize install manifests with specified git repo or anyenv/anyenv-install
  --force-init       Initialize install manifests without confirmation
  --update           Update install manifests

$ anyenv install --list
  Renv
  crenv
  denv
  erlenv
  exenv
  goenv
  hsenv
  jenv
  luaenv
  nodenv
  phpenv
  plenv
  pyenv
  rbenv
  sbtenv
  scalaenv
  swiftenv