[LBo] 3.3.3.4.1 General line filtering

[Howard Rosen]

I modified my grep to look for penguin/pinguin spelling as one or the
other.

Here is the result:
hrosen70 at linux:~> grep p[ei]nguin /usr/share/dict/words
penguin
penguins
penguin's
hrosen70 at linux:~>

Howard