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  • Slow down and ask one clear question then build off that. The way it's asked, it's unnecessarily difficult to parse and unlikely to be of use to others. Commented Jul 24, 2015 at 14:36
  • I don't understand this question. I'm really trying. Commented Jul 24, 2015 at 19:01
  • Basically, he has a lot of directories each with 3 CSVs with 3 name formats. He wants to iterate through the directories, consolidate all the similarly named files - with the file (or directory name?) as the leading column. Commented Jul 24, 2015 at 21:35
  • Please edit your question and show us an example of your input files and an example of your desired output files. How are the columns defined? Commas? Spaces? Tabs? Commented Jul 26, 2015 at 11:27