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The lecture recording for week-8

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From: Christopher M.
Date: Thu 30th Apr 2020, 4:20pm


In the recorded lecture material of week-8, I introduced regular expressions, and 3 
frequently used commands that use them - grep, sed, and awk.

The use of the first two commands was (hopefully) clear, but in the last 5 minutes of the 
video I made a mistake in my awk example, just wasting everyone's time!

So, this week there are 2 video recordings, one about 70 minutes long covering regular 
expressions and their uses, and a second 10-minute sequel replacing the last 5-minutes of 
the first video  (if only my skills were in video editing....)

Sorry for the confusion with these recordings!
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