diff --git a/libs/cli-utils/src/App.php b/libs/cli-utils/src/App.php
index 5bf08bf..f44ca26 100644
--- a/libs/cli-utils/src/App.php
+++ b/libs/cli-utils/src/App.php
@@ -43,7 +43,9 @@ class App
      */
     private $messages = [];
 
-    /** @var int */
+    /**
+     * @var int
+     */
     private $keyWidth = 12;
 
     /**
@@ -61,7 +63,6 @@ public function __construct(array $argv = null)
         $this->script = \array_shift($argv);
         // parse flags
         [$this->args, $this->opts] = Flags::simpleParseArgv($argv);
-
     }
 
     /**
@@ -178,6 +179,10 @@ public function addCommand(string $command, callable $handler, string $descripti
             throw new \InvalidArgumentException('Invalid arguments');
         }
 
+        if (($len = \strlen($command)) > $this->keyWidth) {
+            $this->keyWidth = $len;
+        }
+
         $this->commands[$command] = $handler;
         $this->messages[$command] = \trim($description);
     }
@@ -219,7 +224,7 @@ public function displayHelp(string $err = ''): void
         $help = "Welcome to the Lite Console Application.\n\n<comment>Available Commands:</comment>\n";
 
         foreach ($this->messages as $command => $desc) {
-            $command = str_pad($command, $commandWidth, ' ');
+            $command = \str_pad($command, $commandWidth, ' ');
             $desc    = $desc ?: 'No description for the command';
             $help    .= "  $command   $desc\n";
         }
diff --git a/libs/cli-utils/src/Cli.php b/libs/cli-utils/src/Cli.php
index 54a47fd..586a82a 100644
--- a/libs/cli-utils/src/Cli.php
+++ b/libs/cli-utils/src/Cli.php
@@ -8,22 +8,33 @@
 
 namespace Toolkit\Cli;
 
+use function getenv;
+
 /**
  * Class Cli
  * @package Toolkit\Cli
  */
 class Cli
 {
+    public const LOG_LEVEL2TAG = [
+        'info'    => 'info',
+        'warn'    => 'warning',
+        'warning' => 'warning',
+        'debug'   => 'cyan',
+        'notice'  => 'notice',
+        'error'   => 'error',
+    ];
+
     /*******************************************************************************
      * read/write message
      ******************************************************************************/
 
     /**
-     * @param mixed $message
+     * @param string $message
      * @param bool  $nl
      * @return string
      */
-    public static function read($message = null, $nl = false): string
+    public static function read(string $message = '', bool $nl = false): string
     {
         if ($message) {
             self::write($message, $nl);
@@ -33,15 +44,24 @@ public static function read($message = null, $nl = false): string
     }
 
     /**
-     * write message to console
-     * @param      $messages
-     * @param bool $nl
-     * @param bool $quit
+     * @param string $format
+     * @param mixed  ...$args
      */
-    public static function write($messages, $nl = true, $quit = false): void
+    public static function writef(string $format, ...$args): void
+    {
+        self::write(\sprintf($format, ...$args));
+    }
+
+    /**
+     * Write message to console
+     * @param string|array $messages
+     * @param bool         $nl
+     * @param bool|int     $quit
+     */
+    public static function write($messages, bool $nl = true, $quit = false): void
     {
         if (\is_array($messages)) {
-            $messages = implode($nl ? \PHP_EOL : '', $messages);
+            $messages = \implode($nl ? \PHP_EOL : '', $messages);
         }
 
         self::stdout(Color::parseTag($messages), $nl, $quit);
@@ -53,10 +73,10 @@ public static function write($messages, $nl = true, $quit = false): void
      * @param bool     $nl
      * @param bool|int $quit
      */
-    public static function stdout(string $message, $nl = true, $quit = false): void
+    public static function stdout(string $message, bool $nl = true, $quit = false): void
     {
-        fwrite(\STDOUT, $message . ($nl ? \PHP_EOL : ''));
-        fflush(\STDOUT);
+        \fwrite(\STDOUT, $message . ($nl ? \PHP_EOL : ''));
+        \fflush(\STDOUT);
 
         if (($isTrue = true === $quit) || \is_int($quit)) {
             $code = $isTrue ? 0 : $quit;
@@ -72,8 +92,8 @@ public static function stdout(string $message, $nl = true, $quit = false): void
      */
     public static function stderr(string $message, $nl = true, $quit = -1): void
     {
-        fwrite(\STDERR, self::color('[ERROR] ', 'red') . $message . ($nl ? PHP_EOL : ''));
-        fflush(\STDOUT);
+        \fwrite(\STDERR, self::color('[ERROR] ', 'red') . $message . ($nl ? PHP_EOL : ''));
+        \fflush(\STDOUT);
 
         if (($isTrue = true === $quit) || \is_int($quit)) {
             $code = $isTrue ? 0 : $quit;
@@ -95,6 +115,47 @@ public static function color(string $text, $style = null): string
         return Color::render($text, $style);
     }
 
+    /**
+     * print log to console
+     * @param string $msg
+     * @param array  $data
+     * @param string $type
+     * @param array  $opts
+     * [
+     *  '_category' => 'application',
+     *  'process' => 'work',
+     *  'pid' => 234,
+     *  'coId' => 12,
+     * ]
+     */
+    public static function log(string $msg, array $data = [], string $type = 'info', array $opts = []): void
+    {
+        if (isset(self::LOG_LEVEL2TAG[$type])) {
+            $type = ColorTag::add(\strtoupper($type), self::LOG_LEVEL2TAG[$type]);
+        }
+
+        $userOpts = [];
+
+        foreach ($opts as $n => $v) {
+            if (\is_numeric($n) || \strpos($n, '_') === 0) {
+                $userOpts[] = "[$v]";
+            } else {
+                $userOpts[] = "[$n:$v]";
+            }
+        }
+
+        $optString = $userOpts ? ' ' . \implode(' ', $userOpts) : '';
+
+        self::write(\sprintf(
+            '%s [%s]%s %s %s',
+            \date('Y/m/d H:i:s'),
+            $type,
+            $optString,
+            \trim($msg),
+            $data ? \PHP_EOL . \json_encode($data, \JSON_UNESCAPED_SLASHES | \JSON_PRETTY_PRINT) : ''
+        ));
+    }
+
     /*******************************************************************************
      * some helpers
      ******************************************************************************/
diff --git a/libs/cli-utils/src/Color.php b/libs/cli-utils/src/Color.php
index b798ba0..18246f5 100644
--- a/libs/cli-utils/src/Color.php
+++ b/libs/cli-utils/src/Color.php
@@ -34,6 +34,7 @@
  */
 class Color
 {
+    public const RESET  = 0;
     public const NORMAL = 0;
 
     // Foreground color
@@ -164,7 +165,7 @@ class Color
      * @param array  $args
      * @return string
      */
-    public static function __callStatic($method, array $args)
+    public static function __callStatic(string $method, array $args)
     {
         if (isset(self::STYLES[$method])) {
             return self::render($args[0], $method);
@@ -173,12 +174,8 @@ public static function __callStatic($method, array $args)
         return '';
     }
 
-    /*******************************************************************************
-     * color render
-     ******************************************************************************/
-
     /**
-     * apply style for text
+     * Apply style for text
      * @param string $style
      * @param string $text
      * @return string
@@ -189,7 +186,21 @@ public static function apply(string $style, string $text): string
     }
 
     /**
-     * render text
+     * Format and print to STDOUT
+     * @param string $format
+     * @param mixed  ...$args
+     */
+    public static function printf(string $format, ...$args): void
+    {
+        echo self::render(\sprintf($format, ...$args));
+    }
+
+    /*******************************************************************************
+     * color render
+     ******************************************************************************/
+
+    /**
+     * Render text, apply color code
      * @param string       $text
      * @param string|array $style
      * - string: 'green', 'blue'
@@ -214,7 +225,7 @@ public static function render(string $text, $style = null): string
             $color = \implode(';', $style);
 
             // user color tag: <info>message</info>
-        } elseif (\strpos($text, '<') !== false) {
+        } elseif (\strpos($text, '</') > 0) {
             return self::parseTag($text);
         } else {
             return $text;
@@ -240,7 +251,7 @@ public static function parseTag(string $text)
             return static::clearColor($text);
         }
 
-        if (!\preg_match_all(self::COLOR_TAG, $text, $matches)) {
+        if (!\preg_match_all(ColorTag::MATCH_TAG, $text, $matches)) {
             return $text;
         }
 
diff --git a/libs/cli-utils/src/ColorTag.php b/libs/cli-utils/src/ColorTag.php
index 73b389e..ed10cc5 100644
--- a/libs/cli-utils/src/ColorTag.php
+++ b/libs/cli-utils/src/ColorTag.php
@@ -15,14 +15,15 @@
 class ColorTag
 {
     // regex used for removing color tags
-    private const STRIP_TAG = '/<[\/]?[a-zA-Z=;]+>/';
+    public const STRIP_TAG = '/<[\/]?[a-zA-Z=;]+>/';
 
     // Regex to match tags/
-    private const COLOR_TAG = '/<([a-zA-Z=;]+)>(.*?)<\/\\1>/s';
+    public const MATCH_TAG = '/<([a-zA-Z=;_]+)>(.*?)<\/\\1>/s';
 
     /**
-     * alias of the wrap()
+     * Alias of the wrap()
      * @param string $text
+     * @param string $tag
      * @return string
      */
     public static function add(string $text, string $tag): string
@@ -51,7 +52,7 @@ public static function wrap(string $text, string $tag): string
      */
     public static function matchAll(string $text): array
     {
-        if (!\preg_match_all(self::COLOR_TAG, $text, $matches)) {
+        if (!\preg_match_all(self::MATCH_TAG, $text, $matches)) {
             return [];
         }
 
@@ -64,17 +65,17 @@ public static function parse(string $text): string
     }
 
     /**
-     * exists color tags
+     * Exists color tags
      * @param string $text
      * @return bool
      */
     public static function exists(string $text): bool
     {
-        return false !== \strpos($text, '</');
+        return \strpos($text, '</') > 0;
     }
 
     /**
-     * alias of the strip()
+     * Alias of the strip()
      * @param string $text
      * @return string
      */
diff --git a/libs/cli-utils/src/Console.php b/libs/cli-utils/src/Console.php
deleted file mode 100644
index e7d2ccf..0000000
--- a/libs/cli-utils/src/Console.php
+++ /dev/null
@@ -1,66 +0,0 @@
-<?php
-/**
- * Created by PhpStorm.
- * User: inhere
- * Date: 2018/5/4
- * Time: 上午9:11
- */
-
-namespace Toolkit\Cli;
-
-/**
- * Class Console
- * @package Toolkit\Cli
- */
-class Console extends Cli
-{
-    public const LOG_LEVEL2TAG = [
-        'info'    => 'info',
-        'warn'    => 'warning',
-        'warning' => 'warning',
-        'debug'   => 'cyan',
-        'notice'  => 'notice',
-        'error'   => 'error',
-    ];
-
-    /**
-     * print log to console
-     * @param string $msg
-     * @param array  $data
-     * @param string $type
-     * @param array  $opts
-     * [
-     *  '_category' => 'application',
-     *  'process' => 'work',
-     *  'pid' => 234,
-     *  'coId' => 12,
-     * ]
-     */
-    public static function log(string $msg, array $data = [], string $type = 'info', array $opts = []): void
-    {
-        if (isset(self::LOG_LEVEL2TAG[$type])) {
-            $type = ColorTag::add(\strtoupper($type), self::LOG_LEVEL2TAG[$type]);
-        }
-
-        $userOpts = [];
-
-        foreach ($opts as $n => $v) {
-            if (\is_numeric($n) || \strpos($n, '_') === 0) {
-                $userOpts[] = "[$v]";
-            } else {
-                $userOpts[] = "[$n:$v]";
-            }
-        }
-
-        $optString = $userOpts ? ' ' . \implode(' ', $userOpts) : '';
-
-        Cli::write(\sprintf(
-            '%s [%s]%s %s %s',
-            \date('Y/m/d H:i:s'),
-            $type,
-            $optString,
-            \trim($msg),
-            $data ? \PHP_EOL . \json_encode($data, \JSON_UNESCAPED_SLASHES | \JSON_PRETTY_PRINT) : ''
-        ));
-    }
-}
diff --git a/libs/cli-utils/test/ColorTagTest.php b/libs/cli-utils/test/ColorTagTest.php
index 1eaec14..51fd608 100644
--- a/libs/cli-utils/test/ColorTagTest.php
+++ b/libs/cli-utils/test/ColorTagTest.php
@@ -20,13 +20,26 @@ class ColorTagTest extends TestCase
     public function testMatchAll(): void
     {
         $ret = ColorTag::matchAll('<tag>text0</tag> or <info>text1</info>');
-
         $this->assertCount(3, $ret);
         // tag
         $this->assertSame('tag', $ret[1][0]);
         $this->assertSame('info', $ret[1][1]);
         // content
         $this->assertSame('text0', $ret[2][0]);
+
+        $ret = ColorTag::matchAll('<some_tag>text</some_tag>');
+        $this->assertCount(3, $ret);
+        // tag
+        $this->assertSame('some_tag', $ret[1][0]);
+        // content
+        $this->assertSame('text', $ret[2][0]);
+
+        $ret = ColorTag::matchAll('<someTag>text</someTag>');
+        $this->assertCount(3, $ret);
+        // tag
+        $this->assertSame('someTag', $ret[1][0]);
+        // content
+        $this->assertSame('text', $ret[2][0]);
     }
 
     public function testStrip(): void
diff --git a/libs/cli-utils/test/ColorTest.php b/libs/cli-utils/test/ColorTest.php
new file mode 100644
index 0000000..d9fa986
--- /dev/null
+++ b/libs/cli-utils/test/ColorTest.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace Toolkit\CliTest;
+
+use PHPUnit\Framework\TestCase;
+use Toolkit\Cli\Color;
+
+/**
+ * Class ColorTest
+ * @package Toolkit\CliTest
+ */
+class ColorTest extends TestCase
+{
+    public function testRender(): void
+    {
+        $text = Color::render('text', 'info');
+        $this->assertStringContainsString(Color::STYLES['info'], $text);
+
+        $text = Color::render('text', [Color::RESET, Color::FG_CYAN]);
+        $this->assertStringContainsString(Color::STYLES['cyan'], $text);
+
+        $text = Color::render('<info>text</info>');
+        $this->assertStringContainsString(Color::STYLES['info'], $text);
+
+        $text = Color::render('<light_blue>text</light_blue>');
+        $this->assertStringContainsString(Color::STYLES['light_blue'], $text);
+
+        $text = Color::render('<lightBlue>text</lightBlue>');
+        $this->assertStringContainsString(Color::STYLES['lightBlue'], $text);
+    }
+
+    public function testApply(): void
+    {
+        $text = Color::apply('info', 'text');
+        $this->assertStringContainsString(Color::STYLES['info'], $text);
+
+        foreach (Color::STYLES as $name => $code) {
+            $text = Color::apply($name, 'text');
+            $this->assertStringContainsString($code, $text);
+        }
+    }
+}