(Perl) Check if File Exists

Demonstrates how to check to see if a file exists.

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux

use chilkat();

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

$sftp = chilkat::CkSFtp->new();

# Connect to the SSH server.  
$hostname = "sftp.example.com";
$port = 22;
$success = $sftp->Connect($hostname,$port);
if ($success != 1) {
    print $sftp->lastErrorText() . "\r\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 != 1) {
    print $sftp->lastErrorText() . "\r\n";
    exit;
}

# After authenticating, the SFTP subsystem must be initialized:
$success = $sftp->InitializeSftp();
if ($success != 1) {
    print $sftp->lastErrorText() . "\r\n";
    exit;
}

# Check to see if a file exists

# The return value is one of the following values:
# -1: Unable to check. Examine the LastErrorText to determine the reason for failure.
# 0: File does not exist.
# 1: The regular file exists.
# 2: It exists, but it is a directory.
# 3: It exists, but it is a symlink (only possible if followLinks is false)
# 4: It exists, but it is a special filesystem entry type.
# 5: It exists, but it is an unkown filesystem entry type.
# 6: It exists, but it is an socket filesystem entry type.
# 7: It exists, but it is an char device entry type.
# 8: It exists, but it is an block device entry type.
# 9: It exists, but it is an FIFO entry type.

$followLinks = 1;
$status = $sftp->FileExists("someDir/someFile.txt",$followLinks);
if ($status < 0) {
    print $sftp->lastErrorText() . "\r\n";
    exit;
}

print "status = " . $status . "\r\n";

print "Success" . "\r\n";