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Added an additional grep exercise #842

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@rwangca

rwangca commented Sep 15, 2018

Added an additional grep exercise to practice flags -i and -w with haiku.txt

@@ -249,6 +249,34 @@ Miscellaneous:
> {: .solution}
{: .challenge}
> ## More `grep` practice
>
> What would be the correct command for the of the following text :

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@gcapes

gcapes Sep 17, 2018

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It's not clear what the question is asking. Aside from fixing the existing wording, perhaps stating in words what pattern the learner should search for, show the desired result (as you already have done) and ask the learner to choose the right command would be a better question format?

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