[teknopaul]

URLs are not complicated, unless you complicate them.

foo|foo -foo 's^foo^foo^'"">foo 2>>foo

is not a very good example for teaching the structure of the the command line.

Pick a better one.

It's simple.

[LambdaComplex]

"The average URL" and "what is allowed by the URL specifications" are two very different things. (And the same could be said about your command line example)