Perl

Restart/Resume FTP Download

See more FTP Examples

Resume downloading a file from an FTP server. Chilkat2 Perl

use strict;
use warnings;
use Chilkat2;

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

my $ftp = Chilkat2::Ftp2->new;

$ftp->Hostname('ftp.example.com');
$ftp->Username('login');
$ftp->Password('password');

# Connect and login to the FTP server.
my $success = $ftp->Connect();
if (!$success) {
    print $ftp->LastErrorText, "\n";
    exit;
}

# Change to the remote directory where the file is located.
# This step is only necessary if the file is not in the root directory
# for the FTP account.
$success = $ftp->ChangeRemoteDir('temp');
if (!$success) {
    print $ftp->LastErrorText, "\n";
    exit;
}

# To resume a download, it is assumed that the partial file
# is already present on the local filesystem.
# You only need to set the RestartNext property to resume
# the download.  The Chilkat FTP component sets the resume
# point by getting the existing size of the target (local) file.
$ftp->RestartNext(1);

my $localFilename = 'big.zip';
my $remoteFilename = 'big.zip';

# Resume downloading...
$success = $ftp->GetFile($remoteFilename, $localFilename);
if (!$success) {
    print $ftp->LastErrorText, "\n";
    exit;
}

$success = $ftp->Disconnect();

print "File Downloaded!\n";