Question

I have a few multimillion lined text files located in a directory, I want to read line by line and replace “|” with “\” and then write out the line to a new file. This code might work just fine but I’m not seeing any resulting text file, or it might be I’m just be impatient.

{
        string startingdir = @"K:\qload";
        string dest = @"K:\D\ho\jlg\load\dest";
        string[] files = Directory.GetFiles(startingdir, "*.txt");

        foreach (string file in files)
        {
            StringBuilder sb = new StringBuilder();
            using (FileStream fs = new FileStream(file, FileMode.Open))
            using (StreamReader rdr = new StreamReader(fs))
            {
                while (!rdr.EndOfStream)
                {
                    string begdocfile = rdr.ReadLine();
                    string replacementwork = docfile.Replace("|", "\\");
                    sb.AppendLine(replacementwork);
                    FileInfo file_info = new FileInfo(file);
                    string outputfilename = file_info.Name;
                    using (FileStream fs2 = new FileStream(dest + outputfilename, FileMode.Append))
                    using (StreamWriter writer = new StreamWriter(fs2))
                    {
                        writer.WriteLine(replacementwork);
                    }
                }
            }
        }
    }

DUHHHHH Thanks to everyone.

Id10t error.

Answer 1

Use Path.Combine(dest, outputfilename), from your code it looks like you’re writing to the file K:\D\ho\jlg\load\destouputfilename.txt