[scns]

> It's a basic shell feature that every terminal user should know from day 1. Hardly a "trick".

> That's not gatekeeping. I'm pretty sure anyone that points out `<` would like anyone that doesn't know it to become familiar with it.

Can't see it being pointed out here. No snark intended.

[jolmg]

I'm not that person, so I don't know how they meant themselves to be interpreted. I interpret their comment as correcting the fact that file redirection is not a trick but a basic/core feature and emphasize that with their hyperbole of everyone knowing it from day one. I don't think they mean to dissuade people from using the shell. I don't think they mean their statement in the way of "if you didn't know this, you're not a real terminal user. Get out of here". Maybe I'm wrong and that was their motivation. I don't know.

I was also interpreting user3939382's use of gatekeeping in the context of other similar comments not just the one they were directly replying to. That's probably my mistake.