Downloading file to timestamped-filename

Use WinSCP .NET assembly from your favorite language. Use relevant construct of your language or API of your runtime environment for the file name formatting.

If you do not have your favorite language, use PowerShell:

param (
    $localPath = "c:\downloaded\",
    $remotePath = "/home/user/",
    $fileName = "download.txt"
)
         
try
{
    # Load WinSCP .NET assembly
    Add-Type -Path "WinSCPnet.dll"
 
    # Setup session options
    $sessionOptions = New-Object WinSCP.SessionOptions
    $sessionOptions.Protocol = [WinSCP.Protocol]::Sftp
    $sessionOptions.HostName = "example.com"
    $sessionOptions.UserName = "user"
    $sessionOptions.Password = "mypassword"
    $sessionOptions.SshHostKeyFingerprint = "ssh-rsa 2048 xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx"
 
    $session = New-Object WinSCP.Session
 
    try
    {
        # Connect
        $session.Open($sessionOptions)
 
        # Format timestamp
        $stamp = $(Get-Date -f "yyyyMMddHHmmss")
 
        # Download the file and throw on any error
        $session.GetFiles(
            ($remotePath + $fileName),
            ($localPath + $fileName + "." + $stamp)).Check()
    }
    finally
    {
        # Disconnect, clean up
        $session.Dispose()
    }
 
    exit 0
}
catch [Exception]
{
    Write-Host $_.Exception.Message
    exit 1
}

In scripting, you can use %TIMESTAMP% construct to insert a real-time to a script.

option batch abort
option confirm off
open mysession
get "/home/user/download.txt" "C:\downloaded\download.txt.%TIMESTAMP#yyyymmddhhnnss%"
exit

• Guide to scripting/automation;
• WinSCP .NET assembly;
• Using WinSCP .NET Assembly from PowerShell.