anchor.diff:      linux = pkgs.procps;
       darwin = pkgs.darwin.ps;
     };
  +  quota = singleBinary "quota" {
  +    linux = pkgs.utillinux;
  +    darwin = pkgs.darwin.diskdev_cmds;
  +  };
     route = singleBinary "route" {
       linux = pkgs.nettools;
       darwin = pkgs.darwin.network_cmds;
  
positive.code:     linux = pkgs.utillinux;
      darwin = pkgs.getopt;
    };
    hexdump = singleBinary "hexdump" {
      linux = pkgs.utillinux;
      darwin = pkgs.darwin.shell_cmds;
  
negative.code:   sysctl = singleBinary "sysctl" {
      linux = pkgs.procps;
      darwin = pkgs.darwin.system_cmds;
    };
    top = singleBinary "top" {
      linux = pkgs.procps;
      darwin = pkgs.darwin.top;
    };
    umount = singleBinary "umount" {
      linux = pkgs.utillinux;
  