diff --git a/mdt/mdt.py b/mdt/mdt.py
index 61b99ba..de5a336 100755
--- a/mdt/mdt.py
+++ b/mdt/mdt.py
@@ -12,6 +12,7 @@
 import config
 import devices
 import keys
+import shell
 
 class HelpCommand:
     def run(self, args):
@@ -25,7 +26,8 @@
     'get': config.Get(),
     'set': config.Set(),
     'clear': config.Clear(),
-    'genkey': keys.GenKey()
+    'genkey': keys.GenKey(),
+    'shell': shell.Shell(),
 }
 
 
diff --git a/mdt/shell.py b/mdt/shell.py
new file mode 100644
index 0000000..678ee3c
--- /dev/null
+++ b/mdt/shell.py
@@ -0,0 +1,63 @@
+from time import sleep
+
+import platform
+import subprocess
+import os
+
+import spur
+
+import discoverer
+import config
+import keys
+
+class Shell:
+    def __init__(self):
+        self.config = config.Config()
+        self.keystore = keys.Keystore()
+        self.discoverer = discoverer.Discoverer(self)
+
+        self.username = self.config.username()
+        self.private_key = self.keystore.privateKey()
+        self.ssh_command = self.config.sshCommand()
+
+        self.device = self.config.preferredDevice()
+        self.address = None
+
+    def add_device(self, hostname, address):
+        if not self.device:
+            self.device = hostname
+            self.address = address
+        elif self.device == hostname:
+            self.address = address
+
+    def run(self, args):
+        if len(args) > 1:
+            self.device = args[1]
+
+        if not self.private_key:
+            # Need to call genkey first.
+            print('Looks like you don\'t have a private key yet. Generating one.')
+
+            if not self.keystore.generateKey():
+                print('Unable to generate private key.')
+                return 1
+
+        if not self.address:
+            if self.device:
+                print('Waiting for device "{0}"...'.format(self.device))
+            else:
+                print('Waiting for a device...')
+
+            while not self.address:
+                sleep(0.1)
+
+            print('Found "{0}" at {1}'.format(self.device, self.address))
+
+        os.execvp(
+            self.ssh_command, [
+                self.ssh_command,
+                '-oStrictHostKeyChecking=no',
+                '-i{0}'.format(self.keystore.privateKeyPath()),
+                '-Ct',
+                '@'.join([self.username, self.address])
+            ])