From: Drew Olson <olsonas@...>
Date: 2007-08-09T04:19:07+09:00
Subject: Re: File parsing

Matthew Lagace wrote:
> Hello,
> 
> I have a tab delimited file, I have no headers in the file, and one
> column is the datestamp of the record. Now this datestamp is not in the
> correct format, I know how to format the datestamp to the way I want,
> but how do I replace the incorrect datestamp in the file with the new
> datestamp I have formatted.
> 
> For e.g.: The datestamp in the file is 2007-12-30 12:32:12,
> Here is the datestamp that I want to replace it with instead 20071230
> 
> How do I replace the old datestamp with my new datestamp in a file?
> 
> Thanks

Maybe this?

File.open("newfile.txt","w") do |out|
  File.open("curfile.txt","r").each do |line|
    out << line.gsub(/(\d{4})-(\d{2})-(\d{2}) 
\d{2}:\d{2}:\d{2}/,'\1\2\3')
  end
end
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