如何传递字符串“.”将 ruby 作为命令行参数？

发布于 2024-11-13 23:49:20 字数 721 浏览 5 评论 0原文

code：

  #test_argv.rb
  puts "length: #{ARGV.length} "
  ARGV.each do |a|
    puts "Argument: #{a}"
  end

如果我在调用上述代码时提供字符串 "*.*" （带或不带引号），我会得到以下输出：

  C:\test>test_argv *.*
  length: 5
  Argument: afile.TXT
  Argument: bfile.TXT
  Argument: cfile.TXT
  Argument: dfile.TXT
  Argument: somethingelse.TXT

即 c:\test 中的文件列表。

其他值，例如 "s*.*" 返回 Somethingelse.TXT，正如您在执行文件操作时所期望的那样 - 但我没有。

但这的行为正如预期的那样：

  C:\test>test_argv asdf
  length: 1
  Argument: asdf

所以我的问题是，如何制作一个用户友好的脚本，将 "*.*" （等）作为命令行参数？此外，这在哪里记录/解释？

编辑：这发生在 Windows 和 Linux、1.8.7 和 1.9.2 上

原文

code:

  #test_argv.rb
  puts "length: #{ARGV.length} "
  ARGV.each do |a|
    puts "Argument: #{a}"
  end

If I supply the string "*.*" (with or without quotes) when I call the above, I get the following output:

  C:\test>test_argv *.*
  length: 5
  Argument: afile.TXT
  Argument: bfile.TXT
  Argument: cfile.TXT
  Argument: dfile.TXT
  Argument: somethingelse.TXT

i.e., a listing of the files in c:\test.

Other values, like "s*.*" returns somethingelse.TXT, as you'd expect if you were doing file operations -- but I'm not.

But this behaves as would have expected:

  C:\test>test_argv asdf
  length: 1
  Argument: asdf

So my question is, how can I make a user-friendly script that will take "*.*" (etc) as a command line parameter? In addition, where is this documented/explained?

Edit: this happens on windows and linux, 1.8.7 and 1.9.2

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