[have workaround] "deno" and "deno repl" aren't producing output

I typed in "deno" and nothing happened, and I thought it was finally doing the right thing when no arguments are given to a scripting language command, which is to accept input on stdin, but it seems to just be a glitch.

Any idea why it's hanging for me when I type deno or deno repl? It works when I do deno run hello.jsdeno run hello.js and deno helpdeno help.

deno --verbose isn't a thing.