$ deno run --allow-net=localhost:8080,deno.land https://deno.land/x/cliffy@v1.0.0-rc.5/examples/command.ts
error: Module not found "https://deno.land/x/cliffy@v1.0.0-rc.5/examples/command.ts".
$ deno
Deno 1.46.3
exit using ctrl+d, ctrl+c, or close()
REPL is running with all permissions allowed.
To specify permissions, run `deno repl` with allow flags.
> import { Command } from "https://deno.land/x/cliffy@v1.0.0-rc.5/command/mod.ts";
Uncaught TypeError: Module not found "https://deno.land/x/cliffy@v1.0.0-rc.5/command/mod.ts".