breakds/shell.nix


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with import <nixpkgs> {};

stdenv.mkDerivation rec {
  name = "my-environment";
  buildInputs = [
    (writeShellScriptBin "hostname" ''
      if [[ $# -eq 1 && $1 == "-l" ]]; then
        echo "special case: ${pkgs.nettools}/bin/hostname -i"
      else
        ${pkgs.nettools}/bin/hostname "$@"
      fi
    '')
  ];
}