diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..a1e1e97
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,63 @@
+###############################################################################
+# Set default behavior to automatically normalize line endings.
+###############################################################################
+* text=auto
+
+###############################################################################
+# Set default behavior for command prompt diff.
+#
+# This is need for earlier builds of msysgit that does not have it on by
+# default for csharp files.
+# Note: This is only used by command line
+###############################################################################
+#*.cs     diff=csharp
+
+###############################################################################
+# Set the merge driver for project and solution files
+#
+# Merging from the command prompt will add diff markers to the files if there
+# are conflicts (Merging from VS is not affected by the settings below, in VS
+# the diff markers are never inserted). Diff markers may cause the following 
+# file extensions to fail to load in VS. An alternative would be to treat
+# these files as binary and thus will always conflict and require user
+# intervention with every merge. To do so, just uncomment the entries below
+###############################################################################
+#*.sln       merge=binary
+#*.csproj    merge=binary
+#*.vbproj    merge=binary
+#*.vcxproj   merge=binary
+#*.vcproj    merge=binary
+#*.dbproj    merge=binary
+#*.fsproj    merge=binary
+#*.lsproj    merge=binary
+#*.wixproj   merge=binary
+#*.modelproj merge=binary
+#*.sqlproj   merge=binary
+#*.wwaproj   merge=binary
+
+###############################################################################
+# behavior for image files
+#
+# image files are treated as binary by default.
+###############################################################################
+#*.jpg   binary
+#*.png   binary
+#*.gif   binary
+
+###############################################################################
+# diff behavior for common document formats
+# 
+# Convert binary document formats to text before diffing them. This feature
+# is only available from the command line. Turn it on by uncommenting the 
+# entries below.
+###############################################################################
+#*.doc   diff=astextplain
+#*.DOC   diff=astextplain
+#*.docx  diff=astextplain
+#*.DOCX  diff=astextplain
+#*.dot   diff=astextplain
+#*.DOT   diff=astextplain
+#*.pdf   diff=astextplain
+#*.PDF   diff=astextplain
+#*.rtf   diff=astextplain
+#*.RTF   diff=astextplain
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..03eec4a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,23 @@
+build
+bin
+obj
+packages
+Migrations
+_gsdata_
+_ReSharper*
+TestResults
+app_data
+nuget.config
+*.suo
+*.user
+*.log
+*.pubxml
+*.publish.xml
+.svn
+.vs
+*.dbmdl
+*.jfm
+*.exe
+.idea
+node_modules
+dist
\ No newline at end of file
diff --git a/.tgitconfig b/.tgitconfig
new file mode 100644
index 0000000..c98b9ad
--- /dev/null
+++ b/.tgitconfig
@@ -0,0 +1,4 @@
+[hook "startcommit"]
+	cmdline = code-format.cmd
+	wait = true
+	show = true
\ No newline at end of file
diff --git a/Directory.Build.props b/Directory.Build.props
new file mode 100644
index 0000000..371971c
--- /dev/null
+++ b/Directory.Build.props
@@ -0,0 +1,7 @@
+<Project>
+    <PropertyGroup>
+        <BaseOutputPath>../build/temp/bin</BaseOutputPath>
+        <BaseIntermediateOutputPath>../build/temp/obj</BaseIntermediateOutputPath>
+        <MSBuildProjectExtensionsPath>../build/temp/obj</MSBuildProjectExtensionsPath>
+    </PropertyGroup>
+</Project>
\ No newline at end of file
diff --git a/README.md b/README.md
index 48d3148..0c85949 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,2 @@
 # dot
-功能全面的实用工具-程序员的瑞士军刀
+功能全面的实用工具-程序员的瑞士军刀
\ No newline at end of file
diff --git a/build.ps1 b/build.ps1
new file mode 100644
index 0000000..58318bd
--- /dev/null
+++ b/build.ps1
@@ -0,0 +1,3 @@
+dotnet build 
+dotnet publish -c Release -r win-x64 --sc -p:PublishSingleFile=true -o ./build/win-x64
+rm -r ./build/temp
\ No newline at end of file
diff --git a/code-format.cmd b/code-format.cmd
new file mode 100644
index 0000000..82c9512
--- /dev/null
+++ b/code-format.cmd
@@ -0,0 +1,3 @@
+dot trim-utf8-bom
+dot remove-whitespace
+dot convert-lf
\ No newline at end of file
diff --git a/dot.sln b/dot.sln
new file mode 100644
index 0000000..d27bc7f
--- /dev/null
+++ b/dot.sln
@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "dot", "src\dot.csproj", "{E7608D54-4A3B-4B4B-ADA0-7852987CA21F}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{E7608D54-4A3B-4B4B-ADA0-7852987CA21F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E7608D54-4A3B-4B4B-ADA0-7852987CA21F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E7608D54-4A3B-4B4B-ADA0-7852987CA21F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E7608D54-4A3B-4B4B-ADA0-7852987CA21F}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal
\ No newline at end of file
diff --git a/dot.sln.DotSettings b/dot.sln.DotSettings
new file mode 100644
index 0000000..f7cba85
--- /dev/null
+++ b/dot.sln.DotSettings
@@ -0,0 +1,45 @@
+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+    <s:String x:Key="/Default/CodeStyle/CSharpFileLayoutPatterns/Pattern/@EntryValue">&lt;?xml version="1.0" encoding="utf-16"?&gt;
+&lt;Patterns xmlns="urn:schemas-jetbrains-com:member-reordering-patterns"&gt;
+    &lt;TypePattern&gt;
+        &lt;Entry&gt;
+            &lt;Entry.SortBy&gt;
+                &lt;Kind&gt;
+                    &lt;Kind.Order&gt;
+                        &lt;DeclarationKind&gt;Interface&lt;/DeclarationKind&gt;
+                        &lt;DeclarationKind&gt;Class&lt;/DeclarationKind&gt;
+                        &lt;DeclarationKind&gt;Enum&lt;/DeclarationKind&gt;
+                        &lt;DeclarationKind&gt;Struct&lt;/DeclarationKind&gt;
+                        &lt;DeclarationKind&gt;Delegate&lt;/DeclarationKind&gt;
+                        &lt;DeclarationKind&gt;Event&lt;/DeclarationKind&gt;
+                        &lt;DeclarationKind&gt;Constant&lt;/DeclarationKind&gt;
+                        &lt;DeclarationKind&gt;Field&lt;/DeclarationKind&gt;
+                        &lt;DeclarationKind&gt;Property&lt;/DeclarationKind&gt;
+                        &lt;DeclarationKind&gt;Constructor&lt;/DeclarationKind&gt;
+                        &lt;DeclarationKind&gt;Destructor&lt;/DeclarationKind&gt;
+                        &lt;DeclarationKind&gt;Indexer&lt;/DeclarationKind&gt;
+                        &lt;DeclarationKind&gt;Method&lt;/DeclarationKind&gt;
+                    &lt;/Kind.Order&gt;
+                &lt;/Kind&gt;
+                &lt;Access&gt;
+                    &lt;Access.Order&gt;
+                        &lt;AccessModifier&gt;Private&lt;/AccessModifier&gt;
+                        &lt;AccessModifier&gt;PrivateProtected&lt;/AccessModifier&gt;
+                        &lt;AccessModifier&gt;Protected&lt;/AccessModifier&gt;
+                        &lt;AccessModifier&gt;ProtectedInternal&lt;/AccessModifier&gt;
+                        &lt;AccessModifier&gt;Internal&lt;/AccessModifier&gt;
+                        &lt;AccessModifier&gt;Public&lt;/AccessModifier&gt;
+                    &lt;/Access.Order&gt;
+                &lt;/Access&gt;
+                &lt;Name /&gt;
+            &lt;/Entry.SortBy&gt;
+        &lt;/Entry&gt;
+    &lt;/TypePattern&gt;
+&lt;/Patterns&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/PredefinedNamingRules/=Constants/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AA_BB" /&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/PredefinedNamingRules/=PrivateConstants/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="_" Suffix="" Style="AA_BB" /&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/PredefinedNamingRules/=PrivateStaticReadonly/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="_" Suffix="" Style="aaBb" /&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/PredefinedNamingRules/=StaticReadonly/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AaBb" /&gt;</s:String>
+	<s:Boolean x:Key="/Default/ReSpeller/ReSpellerEnabled/@EntryValue">False</s:Boolean>
+    <s:String x:Key="/Default/CodeInspection/Highlighting/InspectionSeverities/=TooWideLocalVariableScope/@EntryIndexedValue">HINT</s:String>
+</wpf:ResourceDictionary>
\ No newline at end of file
diff --git a/git-clean.ps1 b/git-clean.ps1
new file mode 100644
index 0000000..5f7b39a
--- /dev/null
+++ b/git-clean.ps1
@@ -0,0 +1 @@
+git reset --hard | git clean -d -fx .
\ No newline at end of file
diff --git a/src/.editorconfig b/src/.editorconfig
new file mode 100644
index 0000000..9b11293
--- /dev/null
+++ b/src/.editorconfig
@@ -0,0 +1,41 @@
+[*]
+indent_style = space
+indent_size = 4
+tab_width = 4
+
+
+# ReSharper properties
+resharper_align_linq_query = true
+resharper_align_multiline_argument = true
+resharper_align_multiline_array_and_object_initializer = true
+resharper_align_multiline_binary_patterns = true
+resharper_align_multiline_calls_chain = true
+resharper_align_multiline_extends_list = true
+resharper_align_multiline_parameter = true
+resharper_align_multiline_property_pattern = true
+resharper_align_multiline_switch_expression = true
+resharper_align_multiple_declaration = true
+resharper_align_multline_type_parameter_constrains = true
+resharper_align_multline_type_parameter_list = true
+resharper_align_tuple_components = true
+resharper_allow_comment_after_lbrace = true
+resharper_csharp_empty_block_style = together_same_line
+resharper_csharp_outdent_commas = true
+resharper_csharp_stick_comment = false
+resharper_csharp_wrap_before_comma = true
+resharper_indent_nested_foreach_stmt = true
+resharper_indent_nested_for_stmt = true
+resharper_indent_nested_while_stmt = true
+resharper_indent_preprocessor_if = usual_indent
+resharper_indent_preprocessor_other = usual_indent
+resharper_int_align = true
+resharper_keep_existing_arrangement = false
+resharper_place_linq_into_on_new_line = false
+resharper_place_simple_switch_expression_on_single_line = true
+resharper_wrap_before_eq = true
+resharper_wrap_chained_method_calls = chop_if_long
+resharper_wrap_switch_expression = chop_if_long
+
+# Microsoft .NET properties
+csharp_indent_braces = false
+csharp_new_line_before_open_brace = local_functions, methods, types
\ No newline at end of file
diff --git a/src/Convert2Lf/Main.cs b/src/Convert2Lf/Main.cs
new file mode 100644
index 0000000..eb6b801
--- /dev/null
+++ b/src/Convert2Lf/Main.cs
@@ -0,0 +1,113 @@
+using System.Diagnostics.CodeAnalysis;
+
+namespace Dot.Convert2Lf;
+
+public sealed class Main : Tool<Option>, IDisposable
+{
+    private                 int              _breakCnt;
+    private                 bool             _disposed;
+    private static readonly object           _lockObj = new();
+    private                 int              _procedCnt;
+    private                 int              _replaceCnt;
+    private                 ChildProgressBar _step2Bar;
+    private                 int              _totalCnt;
+    public Main(Option opt) : base(opt) { }
+
+
+    ~Main()
+    {
+        Dispose(false);
+    }
+
+    private void Dispose(bool disposing)
+    {
+        if (_disposed) return;
+        if (disposing) _step2Bar?.Dispose();
+        _disposed = true;
+    }
+
+    private void FileHandle(string file)
+    {
+        _step2Bar.Tick();
+        ShowMessage(1, 0, 0);
+
+        var tmpFile    = $"{file}.tmp";
+        var isReplaced = false;
+        var isBin      = false;
+        int data;
+
+        using (var fsr = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)) {
+            using var fsw = new FileStream(tmpFile, FileMode.OpenOrCreate, FileAccess.Write);
+
+            while ((data = fsr.ReadByte()) != -1) {
+                switch (data) {
+                    case 0x0d when fsr.ReadByte() == 0x0a: // crlf windows
+                        fsw.WriteByte(0x0a);
+                        isReplaced = true;
+                        continue;
+                    case 0x0d: //cr macos
+                        fsw.WriteByte(0x0a);
+                        fsr.Seek(-1, SeekOrigin.Current);
+                        isReplaced = true;
+                        continue;
+                    case 0x00 or 0xff: //非文本文件
+                        isBin = true;
+                        break;
+                    default:
+                        fsw.WriteByte((byte)data);
+                        continue;
+                }
+
+                break;
+            }
+        }
+
+
+        if (isReplaced && !isBin) {
+            MoveFile(tmpFile, file);
+
+            ShowMessage(0, 1, 0);
+        }
+        else {
+            File.Delete(tmpFile);
+            ShowMessage(0, 0, 1);
+        }
+    }
+
+
+    private void ShowMessage(int procedCnt, int replaceCnt, int breakCnt)
+    {
+        lock (_lockObj) {
+            _procedCnt        += procedCnt;
+            _replaceCnt       += replaceCnt;
+            _breakCnt         += breakCnt;
+            _step2Bar.Message =  $"已处理：{_procedCnt}/{_totalCnt}，替换：{_replaceCnt}，跳过：{_breakCnt}";
+        }
+    }
+
+    public void Dispose()
+    {
+        Dispose(true);
+        GC.SuppressFinalize(this);
+    }
+
+    [SuppressMessage("ReSharper", "PossibleMultipleEnumeration")]
+    public override void Run()
+    {
+        if (!Directory.Exists(Opt.Path)) throw new ArgumentException(nameof(Opt.Path), $"指定的路径“{Opt.Path}”不存在");
+
+
+        using var step1Bar = new IndeterminateProgressBar("查找文件...", DefaultProgressBarOptions);
+
+
+        var fileList = EnumerateFiles(Opt.Path, Opt.Filter);
+        _totalCnt = fileList.Count();
+
+        step1Bar.Message = "查找文件...OK";
+        step1Bar.Finished();
+
+        _step2Bar = step1Bar.Spawn(_totalCnt, string.Empty, DefaultProgressBarOptions);
+
+        Parallel.ForEach(fileList, FileHandle);
+    }
+}
\ No newline at end of file
diff --git a/src/Convert2Lf/Option.cs b/src/Convert2Lf/Option.cs
new file mode 100644
index 0000000..35a84b7
--- /dev/null
+++ b/src/Convert2Lf/Option.cs
@@ -0,0 +1,11 @@
+namespace Dot.Convert2Lf;
+
+[Verb("convert-lf", HelpText = "换行符转换为lf")]
+public class Option : IOption
+{
+    [Option('f', "filter", Required = false, HelpText = "文件通配符", Default = "*.*")]
+    public string Filter { get; set; } //normal options here
+
+    [Option('p', "path", Required = false, HelpText = "要处理的目录路径", Default = ".")]
+    public string Path { get; set; }
+}
\ No newline at end of file
diff --git a/src/GlobalUsings.cs b/src/GlobalUsings.cs
new file mode 100644
index 0000000..a9e96a1
--- /dev/null
+++ b/src/GlobalUsings.cs
@@ -0,0 +1,2 @@
+global using ShellProgressBar;
+global using CommandLine;
\ No newline at end of file
diff --git a/src/Guid/Main.cs b/src/Guid/Main.cs
new file mode 100644
index 0000000..7537bc3
--- /dev/null
+++ b/src/Guid/Main.cs
@@ -0,0 +1,17 @@
+using TextCopy;
+
+namespace Dot.Guid;
+
+public sealed class Main : Tool<Option>
+{
+    public Main(Option opt) : base(opt) { }
+
+
+    public override void Run()
+    {
+        var guid            = System.Guid.NewGuid().ToString();
+        if (Opt.Upper) guid = guid.ToUpper();
+        ClipboardService.SetText(guid);
+        Console.WriteLine($"已复制到剪贴板：{guid}");
+    }
+}
\ No newline at end of file
diff --git a/src/Guid/Option.cs b/src/Guid/Option.cs
new file mode 100644
index 0000000..0c1c419
--- /dev/null
+++ b/src/Guid/Option.cs
@@ -0,0 +1,8 @@
+namespace Dot.Guid;
+
+[Verb("guid", HelpText = "GUID工具")]
+public class Option : IOption
+{
+    [Option('u', "upper", HelpText = "大写", Default = false)]
+    public bool Upper { get; set; } //normal options here
+}
\ No newline at end of file
diff --git a/src/IOption.cs b/src/IOption.cs
new file mode 100644
index 0000000..3356709
--- /dev/null
+++ b/src/IOption.cs
@@ -0,0 +1,3 @@
+namespace Dot;
+
+public interface IOption { }
\ No newline at end of file
diff --git a/src/ITool.cs b/src/ITool.cs
new file mode 100644
index 0000000..e74bec8
--- /dev/null
+++ b/src/ITool.cs
@@ -0,0 +1,6 @@
+namespace Dot;
+
+public interface ITool
+{
+    void Run();
+}
\ No newline at end of file
diff --git a/src/Program.cs b/src/Program.cs
new file mode 100644
index 0000000..67a92de
--- /dev/null
+++ b/src/Program.cs
@@ -0,0 +1,32 @@
+using System.Reflection;
+using Dot;
+
+Type[] LoadVerbs()
+{
+    return typeof(Program).Assembly.GetTypes()
+                          //
+                          .Where(x => x.GetCustomAttribute<VerbAttribute>() is not null)
+                          .ToArray();
+}
+
+
+void Run(object args)
+{
+    var tool = ToolsFactory.Create(args as IOption);
+    tool.Run();
+}
+
+
+//Entry Point
+
+var types = LoadVerbs();
+
+try {
+    Parser.Default.ParseArguments(args, types).WithParsed(Run);
+}
+catch (ArgumentException ex) {
+    Console.Error.WriteLine(ex.Message);
+    return -1;
+}
+
+return 0;
\ No newline at end of file
diff --git a/src/Random/Main.cs b/src/Random/Main.cs
new file mode 100644
index 0000000..ef55cda
--- /dev/null
+++ b/src/Random/Main.cs
@@ -0,0 +1,66 @@
+using System.Text.RegularExpressions;
+using NSExt.Extensions;
+using TextCopy;
+
+namespace Dot.Random;
+
+public sealed partial class Main : Tool<Option>
+{
+    private readonly char[][] _charTable = {
+                                               "0123456789".ToCharArray() //
+                                             , "abcdefghijklmnopqrstuvwxyz".ToCharArray()
+                                             , "ABCDEFGHIJKLMNOPQRSTUVWXYZ".ToCharArray()
+                                             , "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~".ToCharArray()
+                                           };
+
+
+    public Main(Option opt) : base(opt) { }
+
+    [GeneratedRegex("[a-z]")]
+    private static partial Regex RegexLowerCaseLetter();
+
+    [GeneratedRegex("\\d")]
+    private static partial Regex RegexNumber();
+
+    [GeneratedRegex("[^\\da-zA-Z]")]
+    private static partial Regex RegexSpecialCharacter();
+
+    [GeneratedRegex("[A-Z]")]
+    private static partial Regex RegexUpperCaseLetter();
+
+    public override void Run()
+    {
+        unsafe {
+            var pSource   = stackalloc char[_charTable.Sum(x => x.Length)];
+            var pDest     = stackalloc char[Opt.Length];
+            var sourceLen = 0;
+
+            if (Opt.Type.HasFlag(Option.GenerateTypes.Number))
+                foreach (var c in _charTable[0])
+                    *(pSource + sourceLen++) = c;
+
+
+            if (Opt.Type.HasFlag(Option.GenerateTypes.LowerCaseLetter))
+                foreach (var c in _charTable[1])
+                    *(pSource + sourceLen++) = c;
+
+            if (Opt.Type.HasFlag(Option.GenerateTypes.UpperCaseLetter))
+                foreach (var c in _charTable[2])
+                    *(pSource + sourceLen++) = c;
+
+
+            if (Opt.Type.HasFlag(Option.GenerateTypes.SpecialCharacter))
+                foreach (var c in _charTable[3])
+                    *(pSource + sourceLen++) = c;
+
+
+            var randScope = new[] { 0, sourceLen };
+            for (var i = 0; i != Opt.Length; ++i) //
+                *(pDest + i) = *(pSource + randScope.Rand());
+
+            var result = new string(pDest, 0, Opt.Length);
+            ClipboardService.SetText(result);
+            Console.WriteLine($"已复制到剪贴板：{result}");
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Random/Option.cs b/src/Random/Option.cs
new file mode 100644
index 0000000..a1a524f
--- /dev/null
+++ b/src/Random/Option.cs
@@ -0,0 +1,21 @@
+namespace Dot.Random;
+
+[Verb("rand", HelpText = "随机数生成器")]
+public class Option : IOption
+{
+    [Flags]
+    public enum GenerateTypes
+    {
+        Number           = 1
+      , LowerCaseLetter  = 2
+      , UpperCaseLetter  = 4
+      , SpecialCharacter = 8
+    }
+
+    [Value(1, MetaName = "长度", Required = true, HelpText = "随机数字长度")]
+    public int Length { get; set; }
+
+
+    [Value(0, MetaName = "生成类型", Required = true, HelpText = "BitSet 1：[0-9]，2：[a-z]，4：[A-Z]，8：[ascii.0x21-0x2F]")]
+    public GenerateTypes Type { get; set; }
+}
\ No newline at end of file
diff --git a/src/RemoveTrailingWhiteSpace/Main.cs b/src/RemoveTrailingWhiteSpace/Main.cs
new file mode 100644
index 0000000..3667008
--- /dev/null
+++ b/src/RemoveTrailingWhiteSpace/Main.cs
@@ -0,0 +1,103 @@
+using System.Diagnostics.CodeAnalysis;
+using NSExt.Extensions;
+
+namespace Dot.RemoveTrailingWhiteSpace;
+
+public sealed class Main : Tool<Option>, IDisposable
+{
+    private                 int              _breakCnt;
+    private                 bool             _disposed;
+    private static readonly object           _lockObj = new();
+    private                 int              _procedCnt;
+    private                 int              _replaceCnt;
+    private                 ChildProgressBar _step2Bar;
+    private                 int              _totalCnt;
+    public Main(Option opt) : base(opt) { }
+
+
+    ~Main()
+    {
+        Dispose(false);
+    }
+
+    private void Dispose(bool disposing)
+    {
+        if (_disposed) return;
+        if (disposing) _step2Bar?.Dispose();
+        _disposed = true;
+    }
+
+    private void FileHandle(string file)
+    {
+        _step2Bar.Tick();
+        ShowMessage(1, 0, 0);
+        var spacesCnt = 0;
+
+        using var fsr = OpenFileToWrite(file);
+        if (fsr.Length == 0 || (spacesCnt = GetSpacesCnt(fsr)) == 0) {
+            ShowMessage(0, 0, 1);
+            return;
+        }
+
+        fsr.Seek(0, SeekOrigin.Begin);
+        if (!fsr.IsTextStream()) return;
+        ShowMessage(0, 1, 0);
+        fsr.SetLength(fsr.Length - spacesCnt);
+    }
+
+    private static int GetSpacesCnt(Stream fsr)
+    {
+        var trimLen = 0;
+        fsr.Seek(-1, SeekOrigin.End);
+        int data;
+        while ((data = fsr.ReadByte()) != -1)
+            if (new[] { 0x20, 0x0d, 0x0a }.Contains(data)) {
+                ++trimLen;
+                if (fsr.Position - 2 < 0) break;
+                fsr.Seek(-2, SeekOrigin.Current);
+            }
+            else {
+                break;
+            }
+
+        return trimLen;
+    }
+
+
+    private void ShowMessage(int procedCnt, int removeCnt, int breakCnt)
+    {
+        lock (_lockObj) {
+            _procedCnt        += procedCnt;
+            _replaceCnt       += removeCnt;
+            _breakCnt         += breakCnt;
+            _step2Bar.Message =  $"已处理：{_procedCnt}/{_totalCnt}，替换：{_replaceCnt}，跳过：{_breakCnt}";
+        }
+    }
+
+    public void Dispose()
+    {
+        Dispose(true);
+        GC.SuppressFinalize(this);
+    }
+
+    /// <inheritdoc />
+    [SuppressMessage("ReSharper", "PossibleMultipleEnumeration")]
+    public override void Run()
+    {
+        if (!Directory.Exists(Opt.Path)) throw new ArgumentException(nameof(Opt.Path), $"指定的路径“{Opt.Path}”不存在");
+
+
+        using var step1Bar = new IndeterminateProgressBar("查找文件...", DefaultProgressBarOptions);
+
+
+        var fileList = EnumerateFiles(Opt.Path, Opt.Filter);
+        _totalCnt = fileList.Count();
+
+        step1Bar.Message = "查找文件...OK";
+        step1Bar.Finished();
+
+        _step2Bar = step1Bar.Spawn(_totalCnt, string.Empty, DefaultProgressBarOptions);
+
+        Parallel.ForEach(fileList, FileHandle);
+    }
+}
\ No newline at end of file
diff --git a/src/RemoveTrailingWhiteSpace/Option.cs b/src/RemoveTrailingWhiteSpace/Option.cs
new file mode 100644
index 0000000..3cf42c8
--- /dev/null
+++ b/src/RemoveTrailingWhiteSpace/Option.cs
@@ -0,0 +1,11 @@
+namespace Dot.RemoveTrailingWhiteSpace;
+
+[Verb("remove-whitespace", HelpText = "移除文件尾部换行和空格")]
+public class Option : IOption
+{
+    [Option('f', "filter", Required = false, HelpText = "文件通配符", Default = "*.*")]
+    public string Filter { get; set; } //normal options here
+
+    [Option('p', "path", Required = false, HelpText = "要处理的目录路径", Default = ".")]
+    public string Path { get; set; }
+}
\ No newline at end of file
diff --git a/src/Text/Main.cs b/src/Text/Main.cs
new file mode 100644
index 0000000..b84dd1a
--- /dev/null
+++ b/src/Text/Main.cs
@@ -0,0 +1,106 @@
+using System.Security.Cryptography;
+using System.Text;
+using NSExt.Extensions;
+using TextCopy;
+
+namespace Dot.Text;
+
+public sealed class Main : Tool<Option>
+{
+    private ref struct Output
+    {
+        public ReadOnlySpan<char> Base64;
+        public ReadOnlySpan<char> Base64DeCode;
+        public ReadOnlySpan<char> Base64DeCodeHex;
+        public ReadOnlySpan<char> EncodingName;
+        public ReadOnlySpan<char> Hex;
+        public ReadOnlySpan<char> HtmlDecode;
+        public ReadOnlySpan<char> HtmlEncode;
+        public ReadOnlySpan<char> Md5;
+        public ReadOnlySpan<char> OriginText;
+        public ReadOnlySpan<char> Sha1;
+        public ReadOnlySpan<char> Sha256;
+        public ReadOnlySpan<char> Sha512;
+        public ReadOnlySpan<char> UrlDecode;
+        public ReadOnlySpan<char> UrlEncode;
+    }
+
+    public Main(Option opt) : base(opt)
+    {
+        if (Opt.Text.NullOrEmpty()) Opt.Text = ClipboardService.GetText();
+        if (Opt.Text.NullOrEmpty()) throw new ArgumentException("输入文本为空");
+    }
+
+    private static Output BuildOutput(string text, Encoding enc)
+    {
+        Output ret;
+        var    inputHex = text.Hex(enc);
+        ret.Base64DeCodeHex = ReadOnlySpan<char>.Empty;
+        ret.Base64DeCode    = ReadOnlySpan<char>.Empty;
+        ret.EncodingName    = enc.EncodingName;
+        ret.OriginText      = text;
+        ret.Hex             = inputHex.String();
+        ret.Base64          = text.Base64(enc);
+        ret.Md5             = MD5.HashData(inputHex).String();
+        ret.Sha1            = SHA1.HashData(inputHex).String();
+        ret.Sha256          = SHA256.HashData(inputHex).String();
+        ret.Sha512          = SHA512.HashData(inputHex).String();
+        ret.UrlEncode       = text.Url();
+        ret.UrlDecode       = text.UrlDe();
+        ret.HtmlDecode      = text.HtmlDe();
+        ret.HtmlEncode      = text.Html();
+
+
+        if (!text.IsBase64String()) return ret;
+        byte[] base64DeHex = null;
+        try {
+            base64DeHex = text.Base64De();
+        }
+        catch (Exception) {
+            // ignored
+        }
+
+        if (base64DeHex == null) return ret;
+        ret.Base64DeCodeHex = base64DeHex.String();
+        ret.Base64DeCode    = enc.GetString(base64DeHex);
+
+
+        return ret;
+    }
+
+    private static void PrintOutput(Output o)
+    {
+        var outputTemp = $"""
+origin-text:       {o.OriginText}
+{new string('-', 20)} {o.EncodingName} {new string('-', 30 - o.EncodingName.Length)}
+hex:               {o.Hex}
+base64:            {o.Base64}
+base64-decode-hex: {o.Base64DeCodeHex}
+base64-decode:     {o.Base64DeCode}
+md5:               {o.Md5}
+sha1:              {o.Sha1}
+sha256:            {o.Sha256}
+sha512:            {o.Sha512}
+url-encode:        {o.UrlEncode}
+url-decode:        {o.UrlDecode}
+html-encode:       {o.HtmlEncode}
+html-decode:       {o.HtmlDecode}
+""";
+        Console.WriteLine(outputTemp);
+    }
+
+    public override void Run()
+    {
+        Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
+        var ansi                = BuildOutput(Opt.Text, Encoding.GetEncoding("gbk"));
+        var utf8                = BuildOutput(Opt.Text, Encoding.UTF8);
+        var unicodeLittleEndian = BuildOutput(Opt.Text, Encoding.Unicode);
+        var unicodeBigEndian    = BuildOutput(Opt.Text, Encoding.BigEndianUnicode);
+
+
+        PrintOutput(ansi);
+        PrintOutput(utf8);
+        PrintOutput(unicodeLittleEndian);
+        PrintOutput(unicodeBigEndian);
+    }
+}
\ No newline at end of file
diff --git a/src/Text/Option.cs b/src/Text/Option.cs
new file mode 100644
index 0000000..3ce844b
--- /dev/null
+++ b/src/Text/Option.cs
@@ -0,0 +1,8 @@
+namespace Dot.Text;
+
+[Verb("text", HelpText = "文本编码工具")]
+public class Option : IOption
+{
+    [Value(0, MetaName = "文本", HelpText = "要处理的文本，不指定此参数：取剪贴板值")]
+    public string Text { get; set; }
+}
\ No newline at end of file
diff --git a/src/Tool.cs b/src/Tool.cs
new file mode 100644
index 0000000..ff4641c
--- /dev/null
+++ b/src/Tool.cs
@@ -0,0 +1,62 @@
+namespace Dot;
+
+public abstract class Tool<TOption> : ITool
+{
+    protected readonly ProgressBarOptions //
+        DefaultProgressBarOptions = new() {
+                                              MessageEncodingName = "utf-8"
+                                            , ProgressBarOnBottom = true
+                                            , ForegroundColor     = ConsoleColor.Yellow
+                                            , ForegroundColorDone = ConsoleColor.DarkGreen
+                                            , BackgroundColor     = ConsoleColor.DarkGray
+                                            , BackgroundCharacter = '\u2593'
+                                          };
+
+    protected virtual TOption Opt { get; set; }
+
+    protected Tool(TOption opt)
+    {
+        Opt = opt;
+    }
+
+    protected static IEnumerable<string> EnumerateFiles(string path, string searchPattern)
+    {
+        var fileList = Directory
+                       .EnumerateFiles(path, searchPattern
+                               ,             new EnumerationOptions {
+                                                                  RecurseSubdirectories = true
+                                                                , AttributesToSkip      = FileAttributes.ReparsePoint
+                                                              })
+                       .Where(x => !new[] { ".git", "node_modules" }.Any(
+                                  y => x.Contains(y, StringComparison.OrdinalIgnoreCase)));
+        return fileList;
+    }
+
+    protected static void MoveFile(string source, string dest)
+    {
+        try {
+            File.Move(source, dest, true);
+        }
+        catch (UnauthorizedAccessException) {
+            File.SetAttributes(dest, new FileInfo(dest).Attributes & ~FileAttributes.ReadOnly);
+            File.Move(source, dest, true);
+        }
+    }
+
+    protected static FileStream OpenFileToWrite(string file)
+    {
+        FileStream fsr;
+        try {
+            fsr = new FileStream(file, FileMode.Open, FileAccess.ReadWrite, FileShare.Read);
+        }
+        catch (UnauthorizedAccessException) {
+            File.SetAttributes(file, new FileInfo(file).Attributes & ~FileAttributes.ReadOnly);
+            fsr = new FileStream(file, FileMode.Open, FileAccess.ReadWrite, FileShare.Read);
+        }
+
+        return fsr;
+    }
+
+
+    public abstract void Run();
+}
\ No newline at end of file
diff --git a/src/ToolsFactory.cs b/src/ToolsFactory.cs
new file mode 100644
index 0000000..b02ca76
--- /dev/null
+++ b/src/ToolsFactory.cs
@@ -0,0 +1,19 @@
+using Dot.TrimUtf8Bom;
+
+namespace Dot;
+
+public static class ToolsFactory
+{
+    public static ITool Create(IOption option)
+    {
+        return option switch {
+                   Option o                          => new Main(o)
+                 , Convert2Lf.Option o               => new Convert2Lf.Main(o)
+                 , RemoveTrailingWhiteSpace.Option o => new RemoveTrailingWhiteSpace.Main(o)
+                 , Random.Option o                   => new Random.Main(o)
+                 , Text.Option o                     => new Text.Main(o)
+                 , Guid.Option o                     => new Guid.Main(o)
+                 , _                                 => throw new ArgumentOutOfRangeException(nameof(option))
+               };
+    }
+}
\ No newline at end of file
diff --git a/src/TrimUtf8Bom/Main.cs b/src/TrimUtf8Bom/Main.cs
new file mode 100644
index 0000000..93dc51f
--- /dev/null
+++ b/src/TrimUtf8Bom/Main.cs
@@ -0,0 +1,90 @@
+using System.Diagnostics.CodeAnalysis;
+
+namespace Dot.TrimUtf8Bom;
+
+public sealed class Main : Tool<Option>, IDisposable
+{
+    private                 int              _breakCnt;
+    private                 bool             _disposed;
+    private static readonly object           _lockObj = new();
+    private                 int              _procedCnt;
+    private                 ChildProgressBar _step2Bar;
+    private                 int              _totalCnt;
+    private                 int              _trimCnt;
+    public Main(Option opt) : base(opt) { }
+
+
+    ~Main()
+    {
+        Dispose(false);
+    }
+
+    private void Dispose(bool disposing)
+    {
+        if (_disposed) return;
+        if (disposing) _step2Bar?.Dispose();
+        _disposed = true;
+    }
+
+
+    private void ShowMessage(int procedCnt, int replaceCnt, int breakCnt)
+    {
+        lock (_lockObj) {
+            _procedCnt        += procedCnt;
+            _trimCnt          += replaceCnt;
+            _breakCnt         += breakCnt;
+            _step2Bar.Message =  $"已处理：{_procedCnt}/{_totalCnt}，移除BOM：{_trimCnt}，跳过：{_breakCnt}";
+        }
+    }
+
+    public void Dispose()
+    {
+        Dispose(true);
+        GC.SuppressFinalize(this);
+    }
+
+    [SuppressMessage("ReSharper", "PossibleMultipleEnumeration")]
+    public override void Run()
+    {
+        if (!Directory.Exists(Opt.Path)) throw new ArgumentException(nameof(Opt.Path), $"指定的路径“{Opt.Path}”不存在");
+
+
+        var       utf8Bom  = new byte[] { 0xef, 0xbb, 0xbf };
+        using var step1Bar = new IndeterminateProgressBar("查找文件...", DefaultProgressBarOptions);
+
+
+        var fileList = EnumerateFiles(Opt.Path, Opt.Filter);
+        _totalCnt = fileList.Count();
+
+        step1Bar.Message = "查找文件...OK";
+        step1Bar.Finished();
+
+        _step2Bar = step1Bar.Spawn(_totalCnt, string.Empty, DefaultProgressBarOptions);
+
+        Parallel.ForEach(fileList, file => {
+            _step2Bar.Tick();
+            ShowMessage(1, 0, 0);
+
+            var tmpFile    = $"{file}.tmp";
+            var isReplaced = false;
+            using (var fsr = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)) {
+                Span<byte> buffer  = stackalloc byte[utf8Bom.Length];
+                var        readLen = fsr.Read(buffer);
+                if (readLen == utf8Bom.Length && buffer.SequenceEqual(utf8Bom)) {
+                    using var fsw = new FileStream(tmpFile, FileMode.OpenOrCreate, FileAccess.Write);
+                    int       data;
+                    while ((data = fsr.ReadByte()) != -1) fsw.WriteByte((byte)data);
+                    isReplaced = true;
+                }
+            }
+
+            if (isReplaced) {
+                MoveFile(tmpFile, file);
+                ShowMessage(0, 1, 0);
+            }
+            else {
+                ShowMessage(0, 0, 1);
+            }
+        });
+    }
+}
\ No newline at end of file
diff --git a/src/TrimUtf8Bom/Option.cs b/src/TrimUtf8Bom/Option.cs
new file mode 100644
index 0000000..390aa98
--- /dev/null
+++ b/src/TrimUtf8Bom/Option.cs
@@ -0,0 +1,11 @@
+namespace Dot.TrimUtf8Bom;
+
+[Verb("trim-utf8-bom", HelpText = "移除文件的uf8 bom")]
+public class Option : IOption
+{
+    [Option('f', "filter", Required = false, HelpText = "文件通配符", Default = "*.*")]
+    public string Filter { get; set; } //normal options here
+
+    [Option('p', "path", Required = false, HelpText = "要处理的目录路径", Default = ".")]
+    public string Path { get; set; }
+}
\ No newline at end of file
diff --git a/src/dot.csproj b/src/dot.csproj
new file mode 100644
index 0000000..b168f25
--- /dev/null
+++ b/src/dot.csproj
@@ -0,0 +1,32 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>net7.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <RootNamespace>Dot</RootNamespace>
+        <AssemblyName>dot</AssemblyName>
+        <Version>1.0.1</Version>
+        <Authors>nsnail</Authors>
+        <Copyright>Copyright (c) 2022 nsnail</Copyright>
+        <RepositoryUrl>https://github.com/nsnail/dot.git</RepositoryUrl>
+        <RepositoryType>git</RepositoryType>
+        <AssemblyTitle>功能全面的实用工具-程序员的瑞士军刀</AssemblyTitle>
+    </PropertyGroup>
+
+    <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+        <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+    </PropertyGroup>
+
+    <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
+        <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="CommandLineParser" Version="2.9.1"/>
+        <PackageReference Include="NSExt" Version="1.0.6"/>
+        <PackageReference Include="ShellProgressBar" Version="5.2.0"/>
+        <PackageReference Include="TextCopy" Version="6.2.0"/>
+    </ItemGroup>
+
+</Project>
\ No newline at end of file