How to Delete Previous Versions in a SharePoint Document Library Using PowerShell

Managing document versions in SharePoint is crucial for maintaining an organized and efficient workspace. Over time, document libraries can accumulate numerous versions, consuming storage space and complicating file management. This article provides a step-by-step guide on how to delete previous versions in a SharePoint document library using PowerShell.

Prerequisites

Before you begin, ensure you have the following:

• Access to the SharePoint site and document library.
• PowerShell installed on your machine.
• Necessary permissions to execute scripts and manage SharePoint libraries.

Step 1: Install the PnP PowerShell Module

The PnP PowerShell module is essential for interacting with SharePoint Online. Install the module using the following command:

Install-Module -Name PnP.PowerShell

If you are using PowerShell 7 or later, you might need to install it specifically for that version:

Install-Module -Name PnP.PowerShell -Scope CurrentUser

Step 2: Import the PnP PowerShell Module

After installing the module, import it into your session:

Import-Module PnP.PowerShell

Step 3: Connect to SharePoint Online

Use the Connect-PnPOnline cmdlet to connect to your SharePoint site. Replace the placeholders with your actual SharePoint site URL and credentials:

Connect-PnPOnline -Url "https://yoursharepointsite.sharepoint.com" -Credentials (Get-Credential)

You will be prompted to enter your credentials.

Step 4: Delete Previous Versions in a Document Library

Once connected, you can use the following script to delete previous versions in a specified document library. Replace "YourLibraryName" with the actual name of your document library:

$library = "YourLibraryName"

$files = Get-PnPListItem -List $library

foreach ($file in $files) {

    Remove-PnPFileVersion -List $library -Identity $file.Id -AllVersions

}

This script retrieves all items in the specified document library and deletes all previous versions of each file.

Troubleshooting Common Issues

If you encounter errors such as CommandNotFoundException, ensure the PnP PowerShell module is installed correctly and imported into your session. Verify the installation with:

Get-Module -ListAvailable -Name PnP.PowerShell

Ensure you are using the latest version of PowerShell by checking your version:

$PSVersionTable.PSVersion

Restarting PowerShell after installing a module can also resolve recognition issues.

Alternative Solutions

If PowerShell isn't your preferred method, consider these alternatives:

• Power Automate: Create a custom flow to automatically delete older versions based on specific criteria.
• Manual Deletion: Use the SharePoint interface to manually delete versions via the Version History option.
• SharePoint Trim Versions Feature: Utilize SharePoint's built-in feature to trim versions based on age or count limits.

By following these steps, you can efficiently manage document versions in your SharePoint libraries, ensuring a streamlined and organized workspace.

USING POWER AUTOMATE

Implementing the deletion of previous versions in a SharePoint document library using Power Automate can help automate and streamline the process. Here’s a step-by-step guide to create a Power Automate flow for this task:

Step-by-Step Guide to Create a Power Automate Flow

1. Create a New Flow

1. Go to Power Automate.
2. Click on Create and select Instant cloud flow.
3. Name your flow and choose the trigger Manually trigger a flow. Click Create.

2. Get Files from the Document Library

1. Add a new action Get files (properties only).
2. Configure the action:
   • Site Address: Select your SharePoint site.
   • Library Name: Select your document library.

3. Loop Through Each File

1. Add an Apply to each action.
2. Set the value from the Get files (properties only) action as the output to loop through each file.

4. Get File Versions

1. Inside the Apply to each action, add a Send an HTTP request to SharePoint action.
2. Configure the action:
   • Site Address: Select your SharePoint site.
   • Method: GET
   • Uri: _api/web/lists/getbytitle('YourLibraryName')/items(@{items('Apply_to_each')?['ID']})/versions
3. This action retrieves all versions of each file.

5. Delete Previous Versions

1. Add another Apply to each action inside the first one to loop through each version.
2. Set the value from the Send an HTTP request to SharePoint action as the output.
3. Add a Condition to check if the version is not the current version.
   • Expression: @not(equals(items('Apply_to_each_2')?['IsCurrentVersion'], true))
4. In the If yes branch, add a Send an HTTP request to SharePoint action to delete the version.
   • Site Address: Select your SharePoint site.
   • Method: DELETE
   • Uri: _api/web/lists/getbytitle('YourLibraryName')/items(@{items('Apply_to_each')?['ID']})/versions(@{items('Apply_to_each_2')?['ID']})

Summary

This flow will loop through each file in the specified document library, retrieve all versions, and delete all previous versions while keeping the current version intact. This automation helps maintain a clean and efficient document library without manual intervention.

If you have any questions or need further assistance, feel free to reach out! 😊

To open or edit code in Linux server

we can use various terminal-based editors depending on what's installed on your Linux server. Here are a few ways to do it:

For example, the code resides in /var/www/proj_management.

🛠️ View files in the project directory:

bash
ls -la /var/www/proj_management

---

✏️ Edit a specific file (e.g., index.php):

Using nano (simple editor):

bash
sudo nano /var/www/proj_management/index.php

Using vim (powerful, but has a learning curve):

bash

sudo vim /var/www/proj_management/index.php

Using code (if Visual Studio Code CLI is installed):

bash
sudo code /var/www/proj_management


If you're accessing the server via SSH and want to edit with a GUI-based editor like VS Code on your local machine, 
you can use Remote - SSH extension in VS Code.

----------------------------------------------------------
If you want to use Remote - SSH extension in VS Code to open and work with files on a remote Linux server (like your /var/www/proj_management directory), here’s a quick setup guide:
✅ Step 1: Install Remote - SSH Extension in VS Code
Open VS Code.
Go to the Extensions panel (Ctrl+Shift+X).
Search for “Remote - SSH”.
Click Install.
✅ Step 2: Add SSH Configuration
Press Ctrl+Shift+P to open the Command Palette.
Type Remote-SSH: Add New SSH Host and select it.
Enter your SSH command, e.g.:
bash
ssh your_username@your_server_ip
Choose the SSH config file to save this entry (usually ~/.ssh/config).

✅ Step 3: Connect to the Server
Open the Command Palette again (Ctrl+Shift+P).
Select Remote-SSH: Connect to Host.
Choose your saved server from the list.
VS Code will open a new window connected to the remote server.

✅ Step 4: Open Your Project Directory
Once connected:
Click File > Open Folder.
Enter:
bash
/var/www/proj_management
You now have full access to browse, edit, run, and debug the code remotely as if it's on your local machine.

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Extracting x-ms-exchange-parent-message-id from a Text File Using Python

In the world of email processing and automation, extracting specific headers from email metadata can be crucial for various tasks. One such header is the x-ms-exchange-parent-message-id, which can be essential for tracking email threads and parent-child relationships in email conversations. In this blog post, we'll walk through a simple Python script to extract this header from a text file.

Why Extract x-ms-exchange-parent-message-id?

The x-ms-exchange-parent-message-id header is used to identify the parent message in an email thread. This can be particularly useful for:

• Email Threading: Keeping track of email conversations.
• Automated Email Processing: Automating responses or actions based on the parent message.
• Data Analysis: Analyzing email communication patterns.

The Python Script

Here's a step-by-step guide to creating a Python script that reads a text file and extracts the x-ms-exchange-parent-message-id header.

Step 1: Import the Required Module

First, we'll import the re module, which provides support for regular expressions in Python.

import re

Step 2: Define the Function

Next, we'll define a function extract_parent_message_id that takes the file path as a parameter, reads the file content, and searches for the x-ms-exchange-parent-message-id header.

def extract_parent_message_id(file_path):
    # Read the content of the file
    with open(file_path, 'r') as file:
        data = file.read()
    
    # Regular expression to find the x-ms-exchange-parent-message-id
    pattern = r'x-ms-exchange-parent-message-id:\s*<([^>]+)>'
    
    # Search for the pattern in the data
    match = re.search(pattern, data)
    
    # Extract and return the parent message ID if found
    if match:
        return match.group(1)
    else:
        return "x-ms-exchange-parent-message-id not found"

Step 3: Use the Function

Finally, we'll use the function to extract the x-ms-exchange-parent-message-id from a sample text file.

# Example usage
file_path = 'path/to/your/file.txt'
parent_message_id = extract_parent_message_id(file_path)
print("x-ms-exchange-parent-message-id:", parent_message_id)

Conclusion

With this simple script, you can easily extract the x-ms-exchange-parent-message-id from any text file containing email headers. This can be a powerful tool for anyone working with email data, whether for automation, analysis, or other purposes.

Feel free to adapt and expand this script to suit your specific needs. Happy coding!