如何显示bundler命令和实用程序的帮助？

Question

bundle --help显示一个帮助文件，其中列出了命令（即安装）和实用程序（即show）。如何查看有关如何使用特定命令或实用程序的详细信息？

Answer 1

我在命令行中通过反复试验找到了这个：

bundle --help show
  Usage:
    bundle show [GEM]

  Options:
        [--paths=List the paths of all gems that are required by your Gemfile.]
        [--no-color=Disable colorization in output]
    -V, [--verbose=Enable verbose output mode]

  Description:
    Show lists the names and versions of all gems that are required by your Gemfile. Calling show with [GEM] will list the exact location of that gem on your machine.

所以一般来说，输入bundle --help <command or utility name>