If the remote file doesn't exist, get fails and the error code becomes SFTP_ERR_REMOTE_STAT_FAILED or SFTP_ERR_REMOTE_OPEN_FAILED (constants are defined in Net::SFTP::Foreign::Constants).

You can also check the last status response from the server ($sftp->status). For conforming serves, that should be SSH2_FX_NO_SUCH_FILE.

In summary: 

use Net::SFTP::Foreign::Constants qw(:error :status);
...

unless ($sftp->get($remote, $local)) {
    if (($sftp->error == SFTP_ERR_REMOTE_STAT_FAILED or
         $sftp->error == SFTP_ERR_REMOTE_OPEN_FAILED) and
         $sftp->status == SSH2_FX_NO_SUCH_FILE) {
        say "Remote file does not exist!";
    }
    else {
        say "Transfer failed";
    }
    die $sftp->error;
}

[download]

In reply to Re: net-sftp-foreign transfer failed vs file not present. by salva
in thread net-sftp-foreign transfer failed vs file not present. by mariog

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