diff --git a/cmd/control/cli.go b/cmd/control/cli.go
index 9314b672..1ba70fe6 100644
--- a/cmd/control/cli.go
+++ b/cmd/control/cli.go
@@ -24,6 +24,14 @@ func Main() {
 			HideHelp:    true,
 			Subcommands: configSubcommands(),
 		},
+		{
+			Name:            "dev",
+			ShortName:       "d",
+			Usage:           "dev spec",
+			HideHelp:        true,
+			SkipFlagParsing: true,
+			Action:          devAction,
+		},
 		{
 			Name:            "env",
 			ShortName:       "e",
diff --git a/cmd/control/dev.go b/cmd/control/dev.go
new file mode 100644
index 00000000..88d36aff
--- /dev/null
+++ b/cmd/control/dev.go
@@ -0,0 +1,11 @@
+package control
+
+import (
+	"fmt"
+	"github.com/codegangsta/cli"
+	"github.com/rancherio/os/util"
+)
+
+func devAction(c *cli.Context) {
+	fmt.Println(util.ResolveDevice(c.Args()[0]))
+}