Nix Cookbook: Difference between revisions

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+== Environment Tasks ==
+=== Creating Shell Scripts ===
+Arbitrary system shell scripts can be created with [https://github.com/NixOS/nixpkgs/blob/master/pkgs/build-support/trivial-builders.nix#L58 pkgs.writeScriptBin]. It creates a derivation which you add to [https://nixos.org/nixos/manual/#sec-declarative-package-mgmt environment.systemPackages].
+<syntaxHighlight lang="nix">
+{ config, pkgs, lib, ... }:
+with lib;
+let
+  helloWorld = pkgs.writeScriptBin "helloWorld" ''
+#!${pkgs.stdenv.shell}
+echo Hello World'';
+in {
+  config.environment.systemPackages = [ helloWorld ];
+}
+</syntaxHighlight>
 == Debugging ==