每当我运行rails（或任何 rails 命令）
时，我都会收到这个错误，
_rails_command:2: permission denied: bin/rails
只有当我在一些旧的rails 应用程序目录中时。
在这些目录中bundle exec rails c，命令有效，但rails甚至rails -v无效。
背景： 我将编码工作区保存在 Dropbox 文件夹中。现在我最近安装了 Manjaro，因此我从以前的操作系统下载回来的所有 Rails 应用程序我称之为旧Rails 应用程序。
简而言之：
Rails 在任何地方都可以正常工作，除了旧的 Rails 应用程序。
bundle exec rails c虽然工作正常。我尝试过的 Ruby 版本：
2.0.0 (rvm), 2.1.1(rvm), 2.1.1 (system)
宝石环境：
RubyGems Environment:
- RUBYGEMS VERSION: 2.2.2
- RUBY VERSION: 2.0.0 (2014-02-24 patchlevel 451) [x86_64-linux]
- INSTALLATION DIRECTORY: /home/tat/.rvm/gems/ruby-2.0.0-p451@latest
- RUBY EXECUTABLE: /home/tat/.rvm/rubies/ruby-2.0.0-p451/bin/ruby
- EXECUTABLE DIRECTORY: /home/tat/.rvm/gems/ruby-2.0.0-p451@latest/bin
- SPEC CACHE DIRECTORY: /home/tat/.gem/specs
- RUBYGEMS PLATFORMS:
- ruby
- x86_64-linux
- GEM PATHS:
- /home/tat/.rvm/gems/ruby-2.0.0-p451@latest
- /home/tat/.rvm/gems/ruby-2.0.0-p451@global
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- https://rubygems.org/
- SHELL PATH:
- /home/tat/.rvm/gems/ruby-2.0.0-p451@latest/bin
- /home/tat/.rvm/gems/ruby-2.0.0-p451@global/bin
- /home/tat/.rvm/rubies/ruby-2.0.0-p451/bin
- /home/tat/bin
- /usr/local/bin
- /usr/local/sbin
- /usr/local/bin
- /usr/bin
- /usr/bin/core_perl
- /home/tat/.rvm/bin
更新：它在 bash 中工作正常，问题似乎出在 oh-my-zsh 上。
这是我的 rvm-info（来自 zsh）：
ruby-2.0.0-p451@latest:
system:
uname: "Linux tat-box 3.10.37-1-MANJARO #1 SMP Mon Apr 14 20:56:29 UTC 2014 x86_64 GNU/Linux"
system: "manjaro/0.8.9/x86_64"
bash: "/usr/bin/bash => GNU bash, version 4.3.8(1)-release (x86_64-unknown-linux-gnu)"
zsh: "/usr/bin/zsh => zsh 5.0.5 (x86_64-unknown-linux-gnu)"
rvm:
version: "rvm 1.25.23 (master) by Wayne E. Seguin <wayneeseguin@gmail.com>, Michal Papis <mpapis@gmail.com> [https://rvm.io/]"
updated: "21 hours 33 minutes 15 seconds ago"
path: "/home/tat/.rvm"
ruby:
interpreter: "ruby"
version: "2.0.0p451"
date: "2014-02-24"
platform: "x86_64-linux"
patchlevel: "2014-02-24 revision 45167"
full_version: "ruby 2.0.0p451 (2014-02-24 revision 45167) [x86_64-linux]"
homes:
gem: "/home/tat/.rvm/gems/ruby-2.0.0-p451@latest"
ruby: "/home/tat/.rvm/rubies/ruby-2.0.0-p451"
binaries:
ruby: "/home/tat/.rvm/rubies/ruby-2.0.0-p451/bin/ruby"
irb: "/home/tat/.rvm/rubies/ruby-2.0.0-p451/bin/irb"
gem: "/home/tat/.rvm/rubies/ruby-2.0.0-p451/bin/gem"
rake: "/home/tat/.rvm/gems/ruby-2.0.0-p451@latest/bin/rake"
environment:
PATH: "/home/tat/.rvm/gems/ruby-2.0.0-p451@latest/bin:/home/tat/.rvm/gems/ruby-2.0.0-p451@global/bin:/home/tat/.rvm/rubies/ruby-2.0.0-p451/bin:/home/tat/bin:/usr/local/bin:/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/bin/core_perl:/home/tat/.gem/ruby/2.1.0/bin:/home/tat/.rvm/bin"
GEM_HOME: "/home/tat/.rvm/gems/ruby-2.0.0-p451@latest"
GEM_PATH: "/home/tat/.rvm/gems/ruby-2.0.0-p451@latest:/home/tat/.rvm/gems/ruby-2.0.0-p451@global"
MY_RUBY_HOME: "/home/tat/.rvm/rubies/ruby-2.0.0-p451"
IRBRC: "/home/tat/.rvm/rubies/ruby-2.0.0-p451/.irbrc"
RUBYOPT: ""
gemset: "latest"