From: Peter Bailey <pbailey@...>
Date: 2009-12-15T01:47:26+09:00
Subject: Re: one-liner for lowercasing files

Thanks, Brian. Yes, it's just filename I want, not content. But, this is 
what I get when I try your suggestion:

>ruby Dir.glob("*").each { |fn| File.rename(fn, fn.downcase) }
'file' is not recognized as an internal or external command,
operable program or batch file.




Brian Candler wrote:
> Peter Bailey wrote:
>> Can someone please suggest a simple Ruby one-liner to lowercase a
>> filename (in a directory)?
> 
> Lowercase the *contents* of a file, or its *name* ?
> 
> For the contents, this example lifted almost verbatim from "man ruby".
> 
>   ruby -p -i.bak -e '$_.downcase!' /tmp/junk
> 
> To lowercase the names of all files:
> 
>   Dir["*"].each { |fn| File.rename(fn, fn.downcase) }
> 
> Beware that even ruby 1.9 won't lowercase anything other than plain A-Z.

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