From: brabuhr@...
Date: 2009-08-08T12:23:58+09:00
Subject: Re: I want a script can do this

On Fri, Aug 7, 2009 at 10:32 PM, Jacky Cheung<jackycheung.king@gmail.com> wrote:
> I want a script can do this:
> a directory aa , under aa has many files. i want batch rename all files.
> like this
> the file name is test01 test02 test03 ... test09 test10 test11... test29....
> rename
> test1 test2 test3 ....test9 test10 test29.....
>
> how can i write this script?

One possible method to map the file names:

irb(main):001:0> a = %w{ test01 test02 test03 test09 test10 test11 }
=> ["test01", "test02", "test03", "test09", "test10", "test11"]
irb(main):002:0> b = a.map{|i| i.scan(/([^\d]+)(\d+)/).flatten }
=> [["test", "01"], ["test", "02"], ["test", "03"], ["test", "09"],
["test", "10"], ["test", "11"]]
irb(main):003:0> c = b.map{|i| [ i[0], i[1].to_i ].join }
=> ["test1", "test2", "test3", "test9", "test10", "test11"]