diff --git a/tools/nfdc/help.cpp b/tools/nfdc/help.cpp
new file mode 100644
index 0000000..6088607
--- /dev/null
+++ b/tools/nfdc/help.cpp
@@ -0,0 +1,104 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2016,  Regents of the University of California,
+ *                           Arizona Board of Regents,
+ *                           Colorado State University,
+ *                           University Pierre & Marie Curie, Sorbonne University,
+ *                           Washington University in St. Louis,
+ *                           Beijing Institute of Technology,
+ *                           The University of Memphis.
+ *
+ * This file is part of NFD (Named Data Networking Forwarding Daemon).
+ * See AUTHORS.md for complete list of NFD authors and contributors.
+ *
+ * NFD is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "help.hpp"
+#include "format-helpers.hpp"
+#include <ndn-cxx/util/logger.hpp>
+#include <unistd.h>
+
+namespace nfd {
+namespace tools {
+namespace nfdc {
+
+NDN_LOG_INIT(nfdc.Help);
+
+const int LIST_COMMAND_NAME_COLUMN_WIDTH = 16;
+
+void
+helpList(std::ostream& os, const CommandParser& parser, ParseMode mode, const std::string& noun)
+{
+  os << "nfdc [-h] [-V] <command> [<args>]\n\n";
+  if (noun.empty()) {
+    os << "All subcommands:\n";
+  }
+  else {
+    os << "Subcommands starting with " << noun << ":\n";
+  }
+
+  std::vector<const CommandDefinition*> commands = parser.listCommands(noun, mode);
+  if (commands.empty()) {
+    os << "  (none)\n";
+    return;
+  }
+
+  for (auto def : commands) {
+    os << "  " << def->getNoun() << ' ' << def->getVerb() << ' '
+       << text::Spaces{static_cast<int>(LIST_COMMAND_NAME_COLUMN_WIDTH -
+                       def->getNoun().size() - def->getVerb().size() - 2)}
+       << def->getTitle() << '\n';
+  }
+
+  os << "\nSee 'nfdc help <command>' to read about a specific subcommand.\n";
+}
+
+static int
+helpSingle(const std::string& noun, const std::string& verb)
+{
+  std::string manpage = "nfdc-" + noun;
+
+  execlp("man", "man", manpage.data(), nullptr);
+  NDN_LOG_FATAL("Error opening man page for " << manpage);
+  return 1;
+}
+
+int
+help(ExecuteContext& ctx, const CommandParser& parser, std::ostream& os)
+{
+  std::string noun = ctx.args.get<std::string>("noun", "");
+  std::string verb = ctx.args.get<std::string>("verb", "");
+
+  if (noun.empty()) {
+    helpList(os, parser, ParseMode::ONE_SHOT, noun);
+    return 0;
+  }
+  else {
+    return helpSingle(noun, verb);
+  }
+}
+
+void
+registerHelpCommand(CommandParser& parser)
+{
+  CommandDefinition defHelp("help", "");
+  defHelp
+    .setTitle("display help information")
+    .addArg("noun", ArgValueType::STRING, Required::NO, Positional::YES)
+    .addArg("verb", ArgValueType::STRING, Required::NO, Positional::YES);
+  parser.addCommand(defHelp, bind(&help, _1, cref(parser), ref(std::cout)));
+}
+
+} // namespace nfdc
+} // namespace tools
+} // namespace nfd