我已经在这个问题上讨论了几天了。我使用zsh并且需要设置目录路径，以便识别我使用的命令。到目前为止遵循这些步骤：
cd ~
ls -al
ls -al向我展示了这些文件：
.oh-my-zsh
.profile
.putty
.rediscli_history
.ringo-history
.ssh
.subversion
.viminfo
.zcompdump
.zsh-update
.zsh_history
.zshrc
我假设我需要添加路径.zshrc，所以：
open -e .zshrc
在文件的末尾，我添加了我将用来设置我的项目的命令的路径（使用 ringojs）：
export PATH=Users/repos/ringojs/bin/:$PATH
关闭文件，重新启动终端应用程序，重新启动计算机，但是找不到ringo-admin位于上述路径下的命令（ ）（ ）：/Users/repos/ringojs/bin
ringo-admin create --google-appengine MyAppName
zsh: command not found: ringo-admin
请帮帮我，如果有帮助的话，这是我的.zshrc文件内容：
# Path to your oh-my-zsh configuration.
ZSH=$HOME/.oh-my-zsh
# Set name of the theme to load.
# Look in ~/.oh-my-zsh/themes/
# Optionally, if you set this to "random", it'll load a random theme each
# time that oh-my-zsh is loaded.
ZSH_THEME="robbyrussell"
# Example aliases
# alias zshconfig="mate ~/.zshrc"
# alias ohmyzsh="mate ~/.oh-my-zsh"
# Set to this to use case-sensitive completion
# CASE_SENSITIVE="true"
# Comment this out to disable bi-weekly auto-update checks
# DISABLE_AUTO_UPDATE="true"
# Uncomment to change how many often would you like to wait before auto-updates occur? (in days)
# export UPDATE_ZSH_DAYS=13
# Uncomment following line if you want to disable colors in ls
# DISABLE_LS_COLORS="true"
# Uncomment following line if you want to disable autosetting terminal title.
# DISABLE_AUTO_TITLE="true"
# Uncomment following line if you want red dots to be displayed while waiting for completion
# COMPLETION_WAITING_DOTS="true"
# Which plugins would you like to load? (plugins can be found in ~/.oh-my-zsh/plugins/*)
# Custom plugins may be added to ~/.oh-my-zsh/custom/plugins/
# Example format: plugins=(rails git textmate ruby lighthouse)
plugins=(git)
source $ZSH/oh-my-zsh.sh
# Customize to your needs...
export PATH=Users/repos/ringojs/bin/ringo-admin:$PATH
请一步一步指导我，因为我是新手zsh。谢谢。
更新：
echo $PATH 显示我最近添加的目录：
/Users/repos/ringojs/bin/ringo-admin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/usr/local/git/bin
我不明白为什么总是找不到该命令。