VB.NET

SFTP Write Text File

See more SFTP Examples

Demonstrates how to create a new text file on the remote SSH server, append text by calling WriteFileText one or more times, and then close the file. VB.NET

Dim success As Boolean = False

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

Dim sftp As New Chilkat.SFtp

' Set some timeouts, in milliseconds:
sftp.ConnectTimeoutMs = 5000
sftp.IdleTimeoutMs = 15000

' Connect to the SSH server.  
' The standard SSH port = 22
' The hostname may be a hostname or IP address.
Dim hostname As String = "sftp.example.com"
Dim port As Integer = 22
success = sftp.Connect(hostname,port)
If (success <> True) Then
    Debug.WriteLine(sftp.LastErrorText)
    Exit Sub
End If


' 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 <> True) Then
    Debug.WriteLine(sftp.LastErrorText)
    Exit Sub
End If


' After authenticating, the SFTP subsystem must be initialized:
success = sftp.InitializeSftp()
If (success <> True) Then
    Debug.WriteLine(sftp.LastErrorText)
    Exit Sub
End If


' Open a file on the server for writing.
' "createTruncate" means that a new file is created; if the file already exists, it is opened and truncated. 
Dim handle As String = sftp.OpenFile("myTest.txt","writeOnly","createTruncate")
If (sftp.LastMethodSuccess <> True) Then
    Debug.WriteLine(sftp.LastErrorText)
    Exit Sub
End If


' Write some text to the file:
success = sftp.WriteFileText(handle,"ansi","abcdefghijklmnopqrstuvwxyz")
If (success <> True) Then
    Debug.WriteLine(sftp.LastErrorText)
    Exit Sub
End If


success = sftp.WriteFileText(handle,"ansi","1234567890")
If (success <> True) Then
    Debug.WriteLine(sftp.LastErrorText)
    Exit Sub
End If


success = sftp.WriteFileText(handle,"ansi","ABCDEFGHIJKLMNOPQRSTUVWXYZ")
If (success <> True) Then
    Debug.WriteLine(sftp.LastErrorText)
    Exit Sub
End If


' Close the file.
success = sftp.CloseHandle(handle)
If (success <> True) Then
    Debug.WriteLine(sftp.LastErrorText)
    Exit Sub
End If


Debug.WriteLine("Success.")