nostr:npub190evqf287da22r9glvv4laruykkt86dwcexkktmn837r7g9mwuzqdeghqu It will ensure that, in cases where bash or sh isn't directly in /bin, it will pick up the correct path (so /usr/bin/env bash will always point to the correct executable). e.g on Nix, bash and sh and so on are in the nix store.