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Perl

Append a Local File to a Remote FTP File

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Demonstrates the Chilkat Ftp2.AppendFile method, which appends the contents of a local file to a remote file. The first argument is the local file path and the second is the remote file path. It uses the FTP APPE command.

Note: The local paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: Unlike PutFile, which replaces the remote file, APPE adds to the end of it — the natural fit for accumulating log data or assembling a file from parts. On a server with normal APPE behavior a missing remote file is created; however, APPE support and exact semantics vary by server, so verify against yours if it is critical.

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Chilkat2 Perl
use strict;
use warnings;
use Chilkat2;

# Demonstrates the Ftp2.AppendFile method, which appends the contents of a local file to a remote
# file.  The 1st argument is the local file path and the 2nd is the remote file path.

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

$ftp->Hostname('ftp.example.com');
$ftp->Username('myFtpLogin');

# Normally you would not hard-code the password in source.  You should instead obtain it
# from an interactive prompt, environment variable, or a secrets vault.
$ftp->Password('myPassword');

my $success = $ftp->Connect();
if (!$success) {
    print $ftp->LastErrorText, "\n";
    exit;
}

# Uses the FTP APPE command.  On a server with normal APPE behavior, a missing remote file is
# created; otherwise the local bytes are appended to the end of the existing remote file.
$success = $ftp->AppendFile('qa_data/today.log', 'logs/app.log');
if (!$success) {
    print $ftp->LastErrorText, "\n";
    exit;
}

print "Appended to the remote file.\n";

$success = $ftp->Disconnect();
if (!$success) {
    print $ftp->LastErrorText, "\n";
    exit;
}