ftp batch file script - windows

Question

Hoping someone can guide me / help me.
The issue, I have 2 servers one running a Ubuntu which has a website for clients to login and download / view reports. The other is a windows server 2012 R2 which creates / stores the reports. I need to move the files from the windows to the Ubuntu server so clients can view. The data is large currently 7gb and growing at 3 gb a year.
I need a batch file to connect using ftp and then copy the folder to a local folder. However it only needs to copy those files which have modified.
I have only ever written one batch file and I cant seem to find any ftp batch scripts which only copies modifed files.
Your my last resort as I cant seem to find a coder who knows batch script (its a dieing art). I have never used powershell so would not know where to start here.
Any help or advice please let me know.
Thanks
John

Answer 1

You can do it with PowerShell with winscp. Exemple :
try
{
# Load WinSCP .NET assembly
Add-Type -Path "WinSCPnet.dll"
# Setup session options
$sessionOptions = New-Object WinSCP.SessionOptions -Property #{
Protocol = [WinSCP.Protocol]::Sftp
HostName = "example.com"
UserName = "user"
Password = "mypassword"
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)
# Upload files
$transferOptions = New-Object WinSCP.TransferOptions
$transferOptions.TransferMode = [WinSCP.TransferMode]::Binary
$transferResult = $session.PutFiles("d:\toupload\*", "/home/user/", $False, $transferOptions)
# Throw on any error
$transferResult.Check()
# Print results
foreach ($transfer in $transferResult.Transfers)
{
Write-Host ("Upload of {0} succeeded" -f $transfer.FileName)
}
}
finally
{
# Disconnect, clean up
$session.Dispose()
}
exit 0
}
catch [Exception]
{
Write-Host ("Error: {0}" -f $_.Exception.Message)
exit 1
}

Answer 2

This would be a way to do it in PowerShell. It would take files that are older then 31 days and upload them.
function FTP-Upload {
[CmdletBinding()]
param(
[Parameter(Mandatory=$true)]
[string]$Source_File,
[Parameter(Mandatory=$true)]
[string]$Target_File,
[Parameter(Mandatory=$true)]
[string]$Target_Server,
[Parameter(Mandatory=$true)]
[string]$Target_Username,
[Parameter(Mandatory=$true)]
[string]$Target_Password
)
$FTP = [System.Net.FTPWebRequest]::Create("ftp://$Target_Server/$Target_File")
$FTP = [System.Net.FTPWebRequest]$FTP
$FTP.Method = [System.Net.WebRequestMethods+Ftp]::UploadFile
$FTP.Credentials = New-Object System.Net.NetworkCredential($Target_Username,$Target_Password)
$FTP.UseBinary = $true
$FTP.UsePassive = $true
# read in the file to upload as a byte array
$content = [System.IO.File]::ReadAllBytes($Source_File)
$FTP.ContentLength = $content.Length
# get the request stream, and write the bytes into it
$rs = $FTP.GetRequestStream()
$rs.Write($content, 0, $content.Length)
# be sure to clean up after ourselves
$rs.Close()
$rs.Dispose()
}
$Upload_Server = "server.network.tld"
$Upload_Location = "/data/"
$Upload_Username = "ftpuser"
$Upload_Password = "ftppassword"
$Files_To_Upload = Get-ChildItem E:\Path\To\Files -Recurse | Where-Object {($_.CreationTime -le (Get-Date).AddDays(-31)) -and (!$_.PSIsContainer)}
Foreach ($File in $Files_To_Upload) {
FTP-Upload -Source_File $File.FullName -Target_File ($Upload_Location + $File.Name) -Target_Server $Upload_Server -Target_Username $Upload_Username -Target_Password $Upload_Password
}