diff --git a/client/client.cc b/client/client.cc
new file mode 100644
index 0000000..746de70
--- /dev/null
+++ b/client/client.cc
@@ -0,0 +1,81 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2012 University of California, Los Angeles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ *	   Zhenkai Zhu <zhenkai@cs.ucla.edu>
+ */
+
+#include <iostream>
+#include <boost/algorithm/string.hpp>
+#include <config.h>
+
+using namespace std;
+using namespace boost;
+
+void
+usage ()
+{
+  cerr << "Usage: chronoshare <cmd> [<options>]\n"
+       << "\n"
+       << "   <cmd> is one of:\n"
+       << "       version\n"
+       << "       update <filename>\n"
+       << "       delete <filename>\n"
+       << "       move <filename> <filename>\n";
+  exit (1);
+}
+
+int
+main (int argc, char **argv)
+{
+  if (argc < 2)
+    {
+      usage ();
+    }
+
+  string cmd = argv[1];
+  algorithm::to_lower (cmd);
+  
+  if (cmd == "version")
+    {
+      cout << "chronoshare version " << CHRONOSHARE_VERSION << endl;
+      exit (0);
+    }
+  else if (cmd == "update")
+    {
+      if (argc != 3)
+        {
+          usage ();
+        }
+    }
+  else if (cmd == "delete")
+    {
+      if (argc != 3)
+        {
+          usage ();
+        }
+    }
+  else if (cmd == "move")
+    {
+      if (argc != 4)
+        {
+          usage ();
+        }
+    }
+  
+  return 0;
+}