People really do need to read the “Unix Power Tools” book and realize their problem has been solved for decades.

"People just need to find the info they don't know about, so then they'll know it."

I don't find that the insinuation of the parent comment at all.

Saying "If you read X book, you'll realize it's a solved problem" IS the information -- the name of the book you need to read

People need to be curious. Then they seek out the info they don't know about.