From: Robert Klemme <shortcutter@...>
Date: 2012-03-18T21:47:49+09:00
Subject: Re: Find from array and move

Chas Conquest wrote in post #1051998:
> I'm needing to cull 900 files from about 3500 files in 100 different
> directories.
>
> I have an array with the 900 files ie. ["2100_01", "2102_05", "2105_04",
> "etc....."]

That would be an array of fileNAMES.

> The files in question are named like so...."2100_01.aif"
>
> Based on the array, I need to match/find these  files from within the
> 100 directories and copy/move each one into a new single directory.

Pathname has quite a few nice tools for this.  Something along these
lines could work:

require 'set'
require 'pathname'

array = ... # as described
source = ... # source directory path
target = ... # target directory path

index = array.to_set # more efficient lookup
tgt = Pathname(target)

abort "Not a directory: #{tgt}" unless tgt.directory?

Pathname(source).find do |f|
  f.file? and index.include? f.basename('.aif') and
    f.rename(tgt + f.basename)
end

Kind regards

robert

-- 
Posted via http://www.ruby-forum.com/.