Manipulating data on Linux

This is an introduction to those using Linux for data analysis for the first time. 
 It came from a post by UCI colleague Harry Mangalam to UC- CSC Mailing List 
 “As an aid to helping students accomplish the basics on one of our clusters, I’ve written up a doc that describes some of the tools and utilities (and gotchas) that they might encounter. You’re welcome to use, re-use, or modify it as per the Creative Commons Documentation license. Suggestions, additions, edits, are welcome.” 
 A work in progress, it’s available here: Manipulating Data on Linux