Have you ever wanted to take data in one format and turn it into a different format? Of course you have! That, in very general terms, is what this lecture is all about. Specifically, massaging data, whether in text or binary format, until you end up with exactly what you wanted.
We’ve already seen some basic data wrangling in past lectures. Pretty much any time you use the
| operator, you are performing some kind of data wrangling. Consider a command like
journalctl | grep -i intel. It finds all system log entries that mention Intel (case insensitive). You may not think of it as wrangling data, but it is going from one format (your entire system log) to a format that is more useful to you (just the intel log entries). Most data wrangling is about knowing what tools you have at your disposal, and how to combine them.