Perl

SFTP Resume Download

See more SFTP Examples

Demonstrates how to resume an SFTP download from a previous partial download. Chilkat2 Perl

use strict;
use warnings;
use Chilkat2;

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

my $sftp = Chilkat2::SFtp->new;

# 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.
my $hostname = 'sftp.example.com';
my $port = 22;
my $success = $sftp->Connect($hostname, $port);
if (!$success) {
    print $sftp->LastErrorText, "\n";
    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) {
    print $sftp->LastErrorText, "\n";
    exit;
}

# After authenticating, the SFTP subsystem must be initialized:
$success = $sftp->InitializeSftp();
if (!$success) {
    print $sftp->LastErrorText, "\n";
    exit;
}

# Download the file:
my $localFilePath = 'c:/temp/hamlet.xml';
my $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) {
    print $sftp->LastErrorText, "\n";
    exit;
}

print "Success.\n";