diff --git a/source/Commands/CommandObjectSet.cpp b/source/Commands/CommandObjectSet.cpp
new file mode 100644
index 0000000..46ad049
--- /dev/null
+++ b/source/Commands/CommandObjectSet.cpp
@@ -0,0 +1,153 @@
+//===-- CommandObjectSet.cpp ------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "CommandObjectSet.h"
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "lldb/Interpreter/CommandInterpreter.h"
+#include "lldb/Interpreter/CommandReturnObject.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+//-------------------------------------------------------------------------
+// CommandObjectSet
+//-------------------------------------------------------------------------
+
+CommandObjectSet::CommandObjectSet () :
+    CommandObject ("set",
+                   "Allows the user to set or change the value of a single debugger setting variable.",
+                   "set <setting_name> <value>")
+{
+}
+
+CommandObjectSet::~CommandObjectSet()
+{
+}
+
+
+bool
+CommandObjectSet::Execute
+(
+    Args& command,
+    CommandContext *context,
+    CommandInterpreter *interpreter,
+    CommandReturnObject &result
+)
+{
+    CommandInterpreter::VariableMap::iterator pos;
+
+    const int argc = command.GetArgumentCount();
+
+    if (argc < 1)
+    {
+        result.AppendError ("'set' takes at least two arguments");
+        result.SetStatus (eReturnStatusFailed);
+        return false;
+    }
+
+    const char *var_name = command.GetArgumentAtIndex(0);
+    const char *var_value = command.GetArgumentAtIndex(1);
+
+    if (var_name == NULL || var_name[0] == '\0')
+    {
+        result.AppendError ("'set' command requires a valid variable name; No value supplied");
+        result.SetStatus (eReturnStatusFailed);
+    }
+    else if (var_value == NULL || var_value[0] == '\0')
+    {
+        // No value given:  Check to see if we're trying to clear an array.
+        StateVariable *var = interpreter->GetStateVariable (var_name);
+        if (var != NULL
+            && var->GetType() == StateVariable::eTypeStringArray)
+        {
+            var->ArrayClearValues();
+            result.SetStatus (eReturnStatusSuccessFinishNoResult);
+        }
+        else
+        {
+            result.AppendError ("'set' command requires a valid variable value; No value supplied");
+            result.SetStatus (eReturnStatusFailed);
+        }
+    }
+    else
+    {
+        StateVariable *var = interpreter->GetStateVariable(var_name);
+        if (var == NULL)
+        {
+            result.AppendErrorWithFormat ("'%s' is not a settable internal variable.\n", var_name);
+            result.SetStatus (eReturnStatusFailed);
+        }
+        else
+        {
+            result.SetStatus (eReturnStatusSuccessFinishNoResult);
+            if (var->GetType() == StateVariable::eTypeBoolean)
+            {
+                bool success = false;
+                bool new_value = Args::StringToBoolean (var_value, false, &success);
+
+                if (success)
+                {
+                    result.SetStatus(eReturnStatusSuccessFinishResult);
+                    if (!var->HasVerifyFunction() || var->VerifyValue (interpreter, (void *) &new_value, result))
+                        var->SetBoolValue (new_value);
+                }
+                else
+                {
+                    result.AppendErrorWithFormat ("Invalid boolean string '%s'.\n", var_value);
+                    result.SetStatus (eReturnStatusFailed);
+                }
+            }
+            else if (var->GetType() == StateVariable::eTypeInteger)
+            {
+                bool success = false;
+                int new_value = Args::StringToSInt32(var_value, -1, 0, &success);
+
+                if (success)
+                {
+                    result.SetStatus(eReturnStatusSuccessFinishResult);
+                    if (!var->HasVerifyFunction() || var->VerifyValue (interpreter, (void *) &new_value, result))
+                        var->SetIntValue (new_value);
+                }
+                else
+                {
+                    result.AppendErrorWithFormat ("Invalid boolean string '%s'.\n", var_value);
+                    result.SetStatus (eReturnStatusFailed);
+                }
+            }
+            else if (var->GetType() == StateVariable::eTypeString)
+            {
+                if (!var->HasVerifyFunction() || var->VerifyValue (interpreter, (void *) var_value, result))
+                    var->SetStringValue (var_value);
+            }
+            else if (var->GetType() == StateVariable::eTypeStringArray)
+            {
+                if (var_value == NULL || var_value[0] == '\0')
+                    var->ArrayClearValues ();
+                else
+                {
+                    command.Shift(); // shift off variable name
+                    var->ArrayClearValues(); // clear the old values
+                    var->GetArgs().AppendArguments (command); // set the new values.
+                }
+            }
+            else
+            {
+                result.AppendErrorWithFormat ("Variable '%s' has unrecognized type.\n",
+                                              var->GetName());
+                result.SetStatus (eReturnStatusFailed);
+            }
+        }
+    }
+    return result.Succeeded();
+}
+