diff --git a/cargotool.logo.txt b/cargotool.logo.txt
new file mode 100644
index 0000000..7449163
--- /dev/null
+++ b/cargotool.logo.txt
@@ -0,0 +1,16 @@
+{color1}                                                    {color2}           ,----,                           {colore} 
+{color1}                                                    {color2}         ,/   .`|                           {colore} 
+{color1}  ,----..                                           {color2}       ,`   .'  :                    ,--,   {colore} 
+{color1} /   /   \                                          {color2}     ;    ;     /                  ,--.'|   {colore} 
+{color1}|   :     :             __  ,-.              ,---.  {color2}   .'___,/    ,'  ,---.     ,---.  |  | :   {colore} 
+{color1}.   |  ;. /           ,' ,'/ /|  ,----._,.  '   ,'\ {color2}   |    :     |  '   ,'\   '   ,'\ :  : '   {colore} 
+{color1}.   ; /--`   ,--.--.  '  | |' | /   /  ' / /   /   |{color2}   ;    |.';  ; /   /   | /   /   ||  ' |   {colore} 
+{color1};   | ;     /       \ |  |   ,'|   :     |.   ; ,. :{color2}   `----'  |  |.   ; ,. :.   ; ,. :'  | |   {colore} 
+{color1}|   : |    .--.  .-. |'  :  /  |   | .\  .'   | |: :{color2}       '   :  ;'   | |: :'   | |: :|  | :   {colore} 
+{color1}.   | '___  \__\/: . .|  | '   .   ; ';  |'   | .; :{color2}       |   |  ''   | .; :'   | .; :'  : |__ {colore} 
+{color1}'   ; : .'| ," .--.; |;  : |   '   .   . ||   :    |{color2}       '   :  ||   :    ||   :    ||  | '.'|{colore} 
+{color1}'   | '/  :/  /  ,.  ||  , ;    `---`-'| | \   \  / {color2}       ;   |.'  \   \  /  \   \  / ;  :    ;{colore} 
+{color1}|   :    /;  :   .'   \---'     .'__/\_: |  `----'  {color2}       '---'     `----'    `----'  |  ,   / {colore} 
+{color1} \   \ .' |  ,     .-./         |   :    :          {color2}                                    ---`-'  {colore} 
+{color1}  `---`    `--`---'              \   \  /           {color2}                                            {colore} 
+{color1}                                  `--`-'            {color2}                                            {colore} 
\ No newline at end of file
diff --git a/src/cmd_default.rs b/src/cmd_default.rs
index 33ac253..a8e3664 100644
--- a/src/cmd_default.rs
+++ b/src/cmd_default.rs
@@ -1,4 +1,4 @@
-use clap::{App, Arg, ArgMatches};
+use clap::{App, ArgMatches};
 use crate::cmd::CommandError;
 
 pub struct CommandImpl;
@@ -6,14 +6,20 @@ pub struct CommandImpl;
 impl CommandImpl {
 
     pub fn process_command<'a>(app: App<'a, 'a>) -> App<'a, 'a> {
-        app.arg(Arg::with_name("verbose").long("verbose").short("v").multiple(true).help("Show verbose info"))
+        // app.arg(Arg::with_name("verbose").long("verbose").short("v").multiple(true).help("Show verbose info"))
+        app
     }
 
-    pub fn run(arg_matches: &ArgMatches) -> CommandError {
-        let verbose_count = arg_matches.occurrences_of("verbose");
-        information!("Verbose count: {}", verbose_count);
-        information!("This is default command cli ...");
-        // TODO ...
+    pub fn run(_arg_matches: &ArgMatches) -> CommandError {
+        let logo = include_str!("../cargotool.logo.txt");
+        println!("{}", logo
+            .replace("{color1}", "\x1B[1m\x1B[91m")
+            .replace("{colore}", "\x1B[0m")
+            .replace("{color2}", "\x1B[32m")
+        );
+        information!("{} v{}", env!("CARGO_PKG_NAME"), env!("CARGO_PKG_VERSION"));
+        information!("Please use `{} --help` to see help message", env!("CARGO_PKG_NAME"));
+        println!();
         Ok(())
     }
 }
\ No newline at end of file
diff --git a/src/cmd_test.rs b/src/cmd_sample.rs
similarity index 73%
rename from src/cmd_test.rs
rename to src/cmd_sample.rs
index 51e5979..10d6282 100644
--- a/src/cmd_test.rs
+++ b/src/cmd_sample.rs
@@ -5,10 +5,10 @@ pub struct CommandImpl;
 
 impl Command for CommandImpl {
 
-    fn name(&self) -> &str { "test" }
+    fn name(&self) -> &str { "sample" }
 
     fn subcommand<'a>(&self) -> App<'a, 'a> {
-        SubCommand::with_name(self.name()).about("Test subcommand")
+        SubCommand::with_name(self.name()).about("Sample subcommand")
     }
 
     fn run(&self, _arg_matches: &ArgMatches, _sub_arg_matches: &ArgMatches) -> CommandError {
diff --git a/src/main.rs b/src/main.rs
index e30bbc0..c4cd85d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,14 +3,14 @@
 mod cmd;
 mod cmd_default;
 mod cmd_crate;
-mod cmd_test;
+mod cmd_sample;
 
 use clap::App;
 use cmd::{Command, CommandError};
 
 fn main() -> CommandError {
     let commands: Vec<Box<dyn Command>> = vec![
-        Box::new(cmd_test::CommandImpl),
+        Box::new(cmd_sample::CommandImpl),
         Box::new(cmd_crate::CommandImpl),
     ];
     let mut app = App::new(env!("CARGO_PKG_NAME"))