4 ms·

The Bourne shell is definitely less work unless you want your code to correctly or reliably handle user input. Then it's more work.

• oguz-ismail 1y ago
  Not in my experience. Any concrete examples off the top of your head, where it's more work than setting up pipes in python manually?
  • baobun 1y ago
    Fill in the blank to run a docker container which opens the file with user-provided path in (say) vim. docker run --rm -it ...? Now run a container doing the exact same thing ("docker-in-docker"). docker run --rm -it -v $DOCKER_HOST:/var/run/docker.sock ...?
    • oguz-ismail 1y ago
      > Fill in the blank to run a docker container which opens the file with user-provided path in (say) vim. Never used docker before, but this seems to work: docker run --rm -it debian bash -c 'vim -- "$1"' _ "$user_provided_path"
      • kragen 1y ago
        Looks relatively safe to me, though it doesn't seem to work because debian:latest doesn't have vim in it (so I'm skeptical of your implicit claim of having tried it), and, if $user_provided_path is empty, it defaults to browsing the filesystem. But there are a lot of characters there that are specifically there to avoid footguns; without them, it would seem to work, but it would fail when $user_provided_path contained special characters. The version I tested was docker run --rm -it debian bash -c 'apt update; apt install -y vim; vim -- "$1"' _ "$user_provided_path"
        • oguz-ismail 1y ago
          > your implicit claim of having tried it I tried printing positional parameters, they looked fine. (And already uninstalled docker. What's the point of containerization if you need superuser privileges to use it?) > if $user_provided_path is empty, it defaults to browsing the filesystem That's what vim -- "" does. > But there are a lot of characters there that are specifically there to avoid footguns What are those characters? --? That's not a lot
          • kragen 1y ago
            Also bash -c '' and "".