ruby - 为什么我需要将 ~/.rbenv/bin 添加到我的路径中？

Question

我读入了rbenv can't change global ruby version我需要将 ~/.rbenv/bin 添加到我的 PATH 中，rbenv 才能工作。

rbenv documentation 中也提到了这一点但该目录不存在，如下所示:

$ ls -a ~/.rbenv/
.  ..  plugins  shims  version  versions

那么为什么我需要添加一个不存在于我的路径中的目录才能使 rbenv 工作？

编辑:

@theTinMan，我尝试卸载并重新安装，但我仍然没有 ~/.rbenv/bin 路径。您在文档中的什么地方看到它应该在那里？

$ rbenv --version
rbenv 1.0.0
$ which rbenv
rbenv () {
    local command
    command="$1"
    if [ "$#" -gt 0 ]
    then
        shift
    fi
    case "$command" in
        (rehash | shell) eval "$(rbenv "sh-$command" "$@")" ;;
        (*) command rbenv "$command" "$@" ;;
    esac
}
$ cd
$ ls .rbenv
plugins  shims    version  versions
$ brew list | grep rbenv
rbenv
$
$ brew uninstall rbenv
Uninstalling /usr/local/Cellar/rbenv/1.0.0... (36 files, 61.9K)
rbenv 0.4.0 is still installed.
Remove all versions with `brew uninstall --force rbenv`.
$ brew uninstall --force rbenv
Uninstalling rbenv... (32 files, 49.9K)
$ brew install rbenv 
==> Summary
🍺  /usr/local/Cellar/rbenv/1.0.0: 36 files, 62K
$ ls .rbenv
plugins  shims    version  versions
$ rbenv -v
rbenv 1.0.0
$ rbenv versions
  system
  2.0.0-p648
* 2.3.1 (set by /Users/max/.rbenv/version)
$

Answer 1

我的 .zshrc 中有以下内容

export PATH="$HOME/.rbenv/bin:$PATH"
eval "$(rbenv init -)"

但我只需要底线

# export PATH="$HOME/.rbenv/bin:$PATH"
eval "$(rbenv init -)"