Rspec 找不到spec命令

所以首先我创建了一个文件夹，还创建了一个ruby文件，并首先安装了rpsc，它说ok installed successfully，但当我想运行spec命令时，它说command not found

Jonys-MacBook-Pro:rspec_tutorial JonyIve$ gem install rspec
Successfully installed rspec-2.12.0
1 gem installed
Installing ri documentation for rspec-2.12.0...
Installing RDoc documentation for rspec-2.12.0...
Jonys-MacBook-Pro:rspec_tutorial JonyIve$ spec user_spec.rb
-bash: spec: command not found

---

rspec命令是

rspec

，而不是

spec

因此：

---

rspec user\u spec.rb

试试

$rspec user\u spec.rb