(PowerShell) SFTP Resume Download

Demonstrates how to resume an SFTP download from a previous partial download.

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

$sftp = New-Object Chilkat.SFtp

# Set some timeouts, in milliseconds:
$sftp.ConnectTimeoutMs = 5000
$sftp.IdleTimeoutMs = 10000

# Connect to the SSH server.  
# The standard SSH port = 22
# The hostname may be a hostname or IP address.
$hostname = "sftp.example.com"
$port = 22
$success = $sftp.Connect($hostname,$port)
if ($success -ne $true) {
    $($sftp.LastErrorText)
    exit
}

# Authenticate with the SSH server.  Chilkat SFTP supports
# both password-based authenication as well as public-key
# authentication.  This example uses password authenication.
$success = $sftp.AuthenticatePw("myLogin","myPassword")
if ($success -ne $true) {
    $($sftp.LastErrorText)
    exit
}

# After authenticating, the SFTP subsystem must be initialized:
$success = $sftp.InitializeSftp()
if ($success -ne $true) {
    $($sftp.LastErrorText)
    exit
}

# Download the file:

$localFilePath = "c:/temp/hamlet.xml"
$remoteFilePath = "subdir1/subdir2/hamlet.xml"
# The ResumeDownloadFileByName method will check
# the local file and begin downloading the remote file
# at the appropriate point.  For example, if the local
# file is already 215624 bytes long, it will begin downloading
# the remote file at the 215625'th byte -- appending to
# the local file.
$success = $sftp.ResumeDownloadFileByName($remoteFilePath,$localFilePath)
if ($success -ne $true) {
    $($sftp.LastErrorText)
    exit
}

$("Success.")