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Automating file transfer processes can significantly improve the efficiency and accuracy of data management. In this tutorial, we will walk through a PowerShell script that utilizes WinSCP to connect to an SFTP server, upload files from a local folder, and then move the files to an archive folder.

Prerequisites

Before you get started, ensure that you have the following:

• WinSCP is installed on your system.
• Access credentials for the SFTP server.

Connecting to the SFTP Server

To establish a connection to the SFTP server, we can utilize the WinSCP .NET assembly within PowerShell.

The WinSCP .NET assembly is a powerful tool that enables PowerShell scripts to interact with the WinSCP application programmatically. By loading the WinSCP .NET assembly into a PowerShell script, users can automate tasks such as connecting to SFTP servers, transferring files, and managing remote directories. This seamless integration enhances PowerShell’s capabilities for securely handling file transfers over SFTP protocol.

The following script demonstrates how to achieve this:

# Load WinSCP .NET assembly
Add-Type -Path "C:\Path\To\WinSCPnet.dll"

# Set up session options
$sessionOptions = New-Object WinSCP.SessionOptions -Property @{
    Protocol = [WinSCP.Protocol]::Sftp
    HostName = "your_sftp_server"
    UserName = "your_username"
    Password = "your_password"
    SshHostKeyFingerprint = "your_ssh_host_key"
}

# Connect to the SFTP server
$session = New-Object WinSCP.Session
$session.Open($sessionOptions)

Uploading and Archiving Files

Once we establish the connection, we can upload files from a specific folder to the SFTP server.

After successfully uploading, the next step involves moving the files from the local folder to an archive one.

The script below illustrates how to accomplish this.

# Remote directory containing the files
$remotePath = "/remote/path/to/files"

# Local directory for storing the files to be uploaded
$localPath = "C:\local\path\for\downloads"

# Local directory for archiving files
$archivePath = "C:\local\path\for\archive"

# Get all the files in the local directory
$files = Get-ChildItem $localPath

# Upload all the files
foreach ($file in $files)
{
    $filePath = $file.FullName
    Write-Host "Uploading $($filePath) ..."
    
    $session.PutFiles($filePath, $remotePath + "/").Check()
    Move-Item -Path $filePath -Destination $archivePath
}

Conclusion

This tutorial explored how PowerShell could automate connecting to an SFTP server and uploading and archiving files using WinSCP. By leveraging these tools’ capabilities, users can streamline file transfer and management, enhancing workflow efficiency and productivity.

Feel free to adapt and modify these scripts to suit your requirements and explore further automation possibilities in PowerShell and SFTP file transfers.

Now, you have the power to handle secure file transfers seamlessly using PowerShell and WinSCP!

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