diff -r 000000000000 -r 5abace724584 cmd/config.go
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cmd/config.go	Wed Apr 19 19:08:47 2017 +0200
@@ -0,0 +1,106 @@
+// Copyright © 2017 Mikael Berthe <mikael@lilotux.net>
+//
+// Licensed under the MIT license.
+// Please see the LICENSE file is this directory.
+
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+
+	"github.com/McKael/madonctl/printer"
+)
+
+var configCmd = &cobra.Command{
+	Use:   "config",
+	Short: "Display configuration",
+}
+
+func init() {
+	RootCmd.AddCommand(configCmd)
+
+	// Subcommands
+	configCmd.AddCommand(configSubcommands...)
+}
+
+var configSubcommands = []*cobra.Command{
+	&cobra.Command{
+		Use:   "dump",
+		Short: "Dump the configuration",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			return configDump()
+		},
+	},
+	&cobra.Command{
+		Use:     "whoami",
+		Aliases: []string{"token"},
+		Short:   "Display user token",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			return configDisplayToken()
+		},
+	},
+}
+
+const configurationTemplate = `---
+instance: '{{.InstanceURL}}'
+app_id: '{{.ID}}'
+app_secret: '{{.Secret}}'
+
+{{if .UserToken}}token: {{.UserToken.access_token}}{{else}}#token: ''{{end}}
+#login: ''
+#password: ''
+safe_mode: true
+...
+`
+
+func configDump() error {
+	if viper.GetBool("safe_mode") {
+		errPrint("Cannot dump: disabled by configuration (safe_mode)")
+		return nil
+	}
+
+	if err := madonInitClient(); err != nil {
+		return err
+	}
+	// Try to sign in, but don't mind if it fails
+	if err := madonLogin(); err != nil {
+		errPrint("Info: could not log in: %s", err)
+	}
+
+	var p printer.ResourcePrinter
+	var err error
+
+	if getOutputFormat() == "plain" {
+		cfile := viper.ConfigFileUsed()
+		if cfile == "" {
+			cfile = defaultConfigFile
+		}
+		errPrint("You can copy the following lines into a configuration file.")
+		errPrint("E.g. %s -i INSTANCE -L USERNAME -P PASS config dump > %s\n", AppName, cfile)
+		p, err = printer.NewPrinterTemplate(configurationTemplate)
+	} else {
+		p, err = getPrinter()
+	}
+	if err != nil {
+		return err
+	}
+	return p.PrintObj(gClient, nil, "")
+}
+
+func configDisplayToken() error {
+	if viper.GetBool("safe_mode") {
+		errPrint("Cannot dump: disabled by configuration (safe_mode)")
+		return nil
+	}
+
+	if err := madonInit(true); err != nil {
+		return err
+	}
+
+	p, err := getPrinter()
+	if err != nil {
+		return err
+	}
+	return p.PrintObj(gClient.UserToken, nil, "")
+}