'Creating a directory called 'con'

In the Ruby console, whenever I try to make a folder 'con', I get the following error:

> FileUtils.mkdir_p('con/')

Errno::ENOTDIR: Not a directory - con
    from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/fileutils.rb:245:in `mkdir'
    from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/fileutils.rb:245:in `fu_mkdir'
    from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/fileutils.rb:219:in `block (2 levels) in mkdir_p'
    from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/fileutils.rb:217:in `reverse_each'
    from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/fileutils.rb:217:in `block in mkdir_p'
    from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/fileutils.rb:203:in `each'
    from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/fileutils.rb:203:in `mkdir_p'
    from (irb):21
    from C:/RailsInstaller/Ruby2.0.0/bin/irb:12:in `<top (required)>'
    from -e:1:in `load'
    from -e:1:in `<main>'

It does not happen for other names.

Why does this happen?

I use Ruby 2.0.0.

rubywindowsdirectory


Solution 1:[1]

It seems like you're using Windows.

In Windows, con is a reserved name for device (console). You cannot use that as a direcotry/file name.

See MS-DOS Device Driver Names Cannot be Used as File Names.

Solution 2:[2]

The folder con is an system-folder, you can't create this folder, delete this folder or save files in it, or read files from it,because con is a simulated device for the cmd. In the Safe Mode you can create this folder. Ther are some other folder-names like con.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 falsetru
Solution 2 aWebDesigner123

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