Create Your Own PowerShell Commands using C# Class Library
Hi There, Can I create my own PowerShell commands.
Solution
Yes, use one of the below option
Create a C# Class Library and consume the DLL as module in PowerShell
Create your own PowerShell module.
Steps
1. Open Visual Studio as Administrator
2. Click File - New - Project and choose Visual C# - Windows - Class Library
3. Name the file as required.
4. Delete the default class library [Class1.cs]
5. Right Click on Solution file and choose Add. Select New Item and create a new Class File
6. The Code Block looks similar to the below. Where CustomCommand is my new class file name
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ClassLibrary1
{
class CustomCommand
{
}
}
- Right click on References choose Add Reference and from .NET add "System.Management" and "System.Management.Automation"
- Alternatively You can refer to the DLL path of PowerShell.
You can use the below code for creating three custom commands:
- Clear-UserTemporaryFiles
- Clear-IEHistory
- Clear-TemporaryInternetFiles
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Management;
using System.Management.Automation;
using System.IO;
namespace Windows_Management
{
[Cmdlet(VerbsCommon.Clear,"TemporaryInternetFiles")]
public class WindowsManagement : PSCmdlet
{
protected override void ProcessRecord()
{
//Delete Internet Cache Files and Folders
string path = Environment.GetFolderPath(Environment.SpecialFolder.InternetCache);
Console.ForegroundColor = ConsoleColor.DarkYellow;
Console.WriteLine("Clearing Temporary Internet Cache Files and Directories....." + path);
System.IO.DirectoryInfo folder = new DirectoryInfo(path);
foreach (FileInfo files in folder.GetFiles())
{
try
{
files.Delete();
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex);
}
}
foreach(DirectoryInfo Directory in folder.GetDirectories() )
{
try
{
Directory.Delete();
}
catch (Exception ex) {
System.Diagnostics.Debug.WriteLine(ex);
}
}
Console.WriteLine("Done Processing!!!");
Console.ResetColor();
}
}
}
namespace clearInternetexplorerHistory
{
[Cmdlet(VerbsCommon.Clear,"IEHistory")]
public class clearInternetexplorerHistory : PSCmdlet
{
protected override void ProcessRecord()
{
// base.ProcessRecord();
string path = Environment.GetFolderPath(Environment.SpecialFolder.History);
Console.ForegroundColor = ConsoleColor.DarkYellow;
Console.WriteLine("Clearing Internet Explorer History....." + path);
System.IO.DirectoryInfo folder = new DirectoryInfo(path);
foreach (FileInfo files in folder.GetFiles())
{
try
{
files.Delete();
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex);
}
}
foreach(DirectoryInfo Directory in folder.GetDirectories() )
{
try
{
Directory.Delete();
}
catch (Exception ex) {
System.Diagnostics.Debug.WriteLine(ex);
}
}
Console.WriteLine("Done Processing!!!");
Console.ResetColor();
}
}
}
namespace UserTemporaryFiles
{
[Cmdlet(VerbsCommon.Clear, "UserTemporaryFiles")]
public class UserTemporaryFiles : PSCmdlet
{
protected override void ProcessRecord()
{
//base.ProcessRecord();
string temppath = System.IO.Path.GetTempPath();
System.IO.DirectoryInfo usertemp = new DirectoryInfo(temppath);
Console.WriteLine("Clearing Your Profile Temporary Files..." + temppath);
foreach(FileInfo tempfiles in usertemp.GetFiles())
{
try
{
tempfiles.Delete();
}
catch (Exception ex) {
System.Diagnostics.Debug.WriteLine(ex);
}
}
Console.WriteLine("Done Processing!!!");
foreach (DirectoryInfo tempdirectory in usertemp.GetDirectories())
{
try
{
tempdirectory.Delete();
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex);
}
}
}
}
}
In the Solution package folder search for the DLL in \bin\debug\Somefilename.DLL and copy to the desired location in this case I copied to C:\Temp
PoweShell Code:
| Import-Module "C:\Temp\Windows Management.dll" Clear-TemporaryInternetFiles Clear-IEHistory Clear-UserTemporaryFiles |
Please download the full Solution File from Technet Gallery