diff --git a/core/commands2/log.go b/core/commands2/log.go
new file mode 100644
index 000000000..f5e840988
--- /dev/null
+++ b/core/commands2/log.go
@@ -0,0 +1,28 @@
+package commands
+
+import (
+	"fmt"
+
+	cmds "github.com/jbenet/go-ipfs/commands"
+	u "github.com/jbenet/go-ipfs/util"
+)
+
+var logCmd = &cmds.Command{
+	Arguments: []cmds.Argument{
+		cmds.Argument{"subsystem", cmds.ArgString, true, false},
+		cmds.Argument{"level", cmds.ArgString, true, false},
+	},
+	Help: "TODO",
+	Run: func(res cmds.Response, req cmds.Request) {
+		args := req.Arguments()
+		if err := u.SetLogLevel(args[0].(string), args[1].(string)); err != nil {
+			res.SetError(err, cmds.ErrClient)
+			return
+		}
+
+		s := fmt.Sprintf("Changed log level of '%s' to '%s'", args[0], args[1])
+		res.SetValue(&MessageOutput{s})
+	},
+	Format: MessageFormatter,
+	Type:   &MessageOutput{},
+}
diff --git a/core/commands2/root.go b/core/commands2/root.go
index df8fd366c..de89ad5c1 100644
--- a/core/commands2/root.go
+++ b/core/commands2/root.go
@@ -61,6 +61,7 @@ var rootSubcommands = map[string]*cmds.Command{
 	"commands": commandsCmd,
 	"publish":  publishCmd,
 	"add":      addCmd,
+	"log":      logCmd,
 
 	// test subcommands
 	// TODO: remove these when we don't need them anymore