When you Google a technical thing you could use the whole sentence like "in a bash session how would you pipe the output from cat to something else?" But that is long winded and can be constraining for the search engine so you boil it down to just the essential words". Start with "how to" then add "bash Cat pipe", and insert "with" because that is the desired adjective.

I've just woken up and I'm wondering if I missed an implied /s. Anyway.