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Get a Remote FTP File's Size by Name

Demonstrates the Chilkat Ftp2.GetSizeByName method, which returns the size in bytes of a named file in the current remote directory as a 32-bit integer. The only argument is the filename — a name, not a path. It returns -1 when the file is not found or the size cannot be obtained.

Background: This is the direct way to get one file's size when you already know its name, typically via a SIZE command — no full directory listing required. Because the result is 32-bit, it cannot represent files past about 2 GB; use GetSizeStrByName for large files. The argument must be a bare filename in the current directory, so ChangeRemoteDir to the right place first.

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Local $bSuccess = False

;  Demonstrates the Ftp2.GetSizeByName method, which returns the size in bytes of a named file in
;  the current remote directory as a 32-bit integer.  The only argument is the filename (a name,
;  not a path).

$oFtp = ObjCreate("Chilkat.Ftp2")

$oFtp.Hostname = "ftp.example.com"
$oFtp.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.
$oFtp.Password = "myPassword"

$bSuccess = $oFtp.Connect()
If ($bSuccess = False) Then
    ConsoleWrite($oFtp.LastErrorText & @CRLF)
    Exit
EndIf

$bSuccess = $oFtp.ChangeRemoteDir("public_html")
If ($bSuccess = False) Then
    ConsoleWrite($oFtp.LastErrorText & @CRLF)
    Exit
EndIf

;  Returns -1 when the file is not found or the size cannot be obtained.  For files that may
;  exceed 2 GB, use GetSizeStrByName (returns a decimal string).
Local $iFileSize = $oFtp.GetSizeByName("report.pdf")
If ($iFileSize < 0) Then
    ConsoleWrite("File not found, or size unavailable." & @CRLF)
    Exit
EndIf

ConsoleWrite("report.pdf is " & $iFileSize & " bytes" & @CRLF)

$bSuccess = $oFtp.Disconnect()
If ($bSuccess = False) Then
    ConsoleWrite($oFtp.LastErrorText & @CRLF)
    Exit
EndIf