They come with good manpages if you install them. I don't disagree that a little more detail on the linked web page might help people decide whether or not to i

They come with good manpages if you install them. I don't disagree that a little more detail on the linked web page might help people decide whether or not to install, but in keeping with how these are well-behaved oldschool-style Unix commands, they also come with man pages, which is more than I can say for most command line tools people make today (the ones that assume you have Unicode glyphs and color terminals [and don't check if they're being piped or offer --no-color] and don't accept -h/--help and countless other things that kids these days have eschewed).