From: Tim Hunter <cyclists@...>
Date: 2003-01-03T08:51:57+09:00
Subject: Re: Dir.rename?

On Thu, 02 Jan 2003 16:23:57 +0000, Useko Netsumi wrote:

> how about batch rename using regex?
> 
> "Tim Hunter" <cyclists@nc.rr.com> wrote in message
> news:pan.2003.01.02.15.08.26.64569@nc.rr.com...
>> On Fri, 03 Jan 2003 05:10:29 +0900, coma_kille wrote:
>>
>> > Hi,
>> >
>> > Is there some easy way to rename directories from Ruby code?
>> >
>> > Like Dir.rename(old, new)?
>> >
>> > Regards,
>> >
>> > Karsten
>>
>> File.rename(old, new)

Hmmm...I think you'd want to loop over the parent directory and rename
each entry individually. I don't feel good about renaming entries in the
directory while I'm looping over it, so my inclination would be to collect
the directory entries in an array with Dir.[] and then loop over the array
with Array.each. Something like this (NOT tested!)

Dir['*'].each { |old|
   next if old == '.' || old == '..' || !FileTest.directory(old) next
   unless /re/.match(old)        # skip entries that don't
				 # match your regexp
   new = old.sub(re,sub)	 # create new name File.rename(old,new)		 #
   File.rename(old,new)
}