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HakTip

How to Use Cat, Sort, and Uniq: Linux Terminal 201 -  HakTip 0167
https://youtube.com/watch?v=bH1BDBzc3I0

How to Use Cut, Paste, and Join: Linux Terminal 201 - HakTip 0168 
https://youtube.com/watch?v=k014CkDmB2A