Maybe you're better at googling than I am but I've had serious issues with that. The problem is that there are way too many false positives for any query containing "ip" regarding networking. And even looking at the excerpts on the search results page it's not always obvious if "ip" refers to the command or something else.

Take for instance a very simple query: "ip show default route":

https://duckduckgo.com/?q=ip+command+show+default+route&t=ff...

There are a few obviously relevant matches in the first page but also a bunch of completely irrelevant results. Adding "command" doesn't improve that much. And that's for a very simple query that's probably been asked hundreds of times before.

Meanwhile if I search "ls sort date" I get mostly relevant results immediately because even though it's also a 2 letter identifier it's not quite as ambiguous: https://duckduckgo.com/?q=ls+sort+date&t=ffab&ia=qa

Yes, DDG gets relevant results too: https://ddg.gg/?q="ip+command"