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Not unless you’re also trying to demonstrate the magic of fork.

noted, thanks

Extraneously strenuous use of "useless" when using "redundant" would have done...unless useless has another usage.

EDIT: The commenter echoed, duckly.

It's very important to watch out for useless uses of echo/cat. What is cat, a few megabytes now? Fine for those of us on modern hardware, but you never know what PDP-11 user is going to copy paste your comment into their terminal.

I use a construct like this to ensure that the value ends with a newline.

$() chomps the newline though...