diff --git a/cmd/passwd.go b/cmd/passwd.go
index 9e51804..dbffc66 100644
--- a/cmd/passwd.go
+++ b/cmd/passwd.go
@@ -49,9 +49,9 @@ to quickly create a Cobra application.`,
 func init() {
 	rootCmd.AddCommand(passwdCmd)
 	r = *rand.New(rand.NewSource(time.Now().UnixMicro()))
-	passwdCmd.Flags().IntVarP(&passwdLength, "length", "l", 24, "Length of password (default=24)")
-	passwdCmd.Flags().BoolVar(&passwdDigits, "digits", true, "Present digits in password (default=true)")
-	passwdCmd.Flags().BoolVar(&passwdSpecials, "specials", true, "Present special symbols in password (default=true)")
+	passwdCmd.Flags().IntVarP(&passwdLength, "length", "l", 24, "Length of password")
+	passwdCmd.Flags().BoolVar(&passwdDigits, "digits", true, "Present digits in password")
+	passwdCmd.Flags().BoolVar(&passwdSpecials, "specials", true, "Present special symbols in password")
 }
 
 func getPasswd(passwdLen int, digitFlag bool, specFlag bool) string {
diff --git a/cmd/uuid.go b/cmd/uuid.go
new file mode 100644
index 0000000..b7df119
--- /dev/null
+++ b/cmd/uuid.go
@@ -0,0 +1,59 @@
+/*
+Copyright © 2023 NAME HERE <EMAIL ADDRESS>
+*/
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/google/uuid"
+	"github.com/spf13/cobra"
+)
+
+// uuidCmd represents the uuid command
+var (
+	uuidCmd = &cobra.Command{
+		Use:   "uuid",
+		Short: "Generate UUID string",
+		Long: `A UUID is a 16 byte (128 bit) array.
+UUIDs may be used as keys to maps or compared directly.`,
+		Run: func(cmd *cobra.Command, args []string) {
+			fmt.Println(getUUID())
+		},
+	}
+	v4UUID    bool
+	v5UUID    bool
+	nilUUID   bool
+	namespace = uuid.NameSpaceURL
+	url       = []byte("https://jtprog.ru")
+)
+
+func init() {
+	rootCmd.AddCommand(uuidCmd)
+
+	// Here you will define your flags and configuration settings.
+
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// uuidCmd.PersistentFlags().String("foo", "", "A help for foo")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	uuidCmd.Flags().BoolVarP(&v4UUID, "v4", "4", true, "Generate UUID4")
+	uuidCmd.Flags().BoolVarP(&v5UUID, "v5", "5", false, "Generate UUID5")
+	uuidCmd.Flags().BoolVarP(&nilUUID, "v0", "0", false, "Generate UUIDnil")
+
+}
+
+func getUUID() string {
+	switch {
+	case v4UUID:
+		return uuid.New().String()
+	case v5UUID:
+		return uuid.NewMD5(namespace, url).String()
+	case nilUUID:
+		return "00000000-0000-0000-0000-000000000000"
+	default:
+		return "00000000-0000-0000-0000-000000000000"
+	}
+}
diff --git a/go.mod b/go.mod
index 8a63507..a0150bb 100644
--- a/go.mod
+++ b/go.mod
@@ -3,6 +3,7 @@ module github.com/jtprogru/gch
 go 1.20
 
 require (
+	github.com/google/uuid v1.3.0
 	github.com/spf13/cobra v1.6.1
 	github.com/spf13/viper v1.15.0
 )
diff --git a/go.sum b/go.sum
index c2ce218..d117ef1 100644
--- a/go.sum
+++ b/go.sum
@@ -114,6 +114,8 @@ github.com/google/pprof v0.0.0-20201203190320-1bf35d6f28c2/go.mod h1:kpwsk12EmLe
 github.com/google/pprof v0.0.0-20201218002935-b9804c9f04c2/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
 github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
 github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
+github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg=
 github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk=
 github.com/googleapis/google-cloud-go-testing v0.0.0-20200911160855-bcd43fbb19e8/go.mod h1:dvDLG8qkwmyD9a/MJJN3XJcT3xFxOKAvTZGvuZmac9g=