What alternative methods can be used to adjust file permissions if a FTP client like Total Commander does not support it?

Total Commander does not support adjusting file permissions directly through its FTP client interface. One alternative method to adjust file permissions is to use a server-side scripting language like PHP to connect to the FTP server and set the permissions programmatically. This can be achieved by using the FTP functions provided by PHP to login to the server, navigate to the desired file or directory, and then set the permissions using the `chmod` function.

<?php
$ftp_server = 'ftp.example.com';
$ftp_username = 'username';
$ftp_password = 'password';

$ftp_connection = ftp_connect($ftp_server);
$login = ftp_login($ftp_connection, $ftp_username, $ftp_password);

if ($login) {
    // Change directory
    ftp_chdir($ftp_connection, '/path/to/directory');

    // Set permissions
    ftp_chmod($ftp_connection, 0644, 'filename.txt');

    // Close connection
    ftp_close($ftp_connection);
} else {
    echo 'Failed to connect to FTP server';
}
?>