Use FreeFile : File Utilities « Stream File « VB.Net Tutorial

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VB.Net Tutorial » Stream File » File Utilities   13.3.8.Use FreeFile Option Strict On Public Module Checking    Private Const filename As String = "CheckFile.dat"    Public Sub Main()       Dim fn As Integer = FreeFile       Dim fileOpened As Boolean       Try          FileOpen(fn, filename, OpenMode.Append)          fileOpened = True          WriteLine(fn, 1605, Date.Now, "Books", 2.19)       Catch e As Exception          Console.WriteLine(e.GetType().Name & ": " & e.Message)       Finally          If fileOpened Then FileClose(fn)       End Try    End Sub End Module 13.3.File Utilities 13.3.1. Copy a file 13.3.2. Use the HMACSHA1 hashing function to generate a checksum for a file. 13.3.3. Delete a file with kill 13.3.4. Delete a file 13.3.5. File copy 13.3.6. Move a File 13.3.7. Move a file with File.Move 13.3.8. Use FreeFile 13.3.9. Use FreeFile to read a text file