text-files

I would like to create a .txt file and write to it, and if the file already exists I just want to append some more lines: string path = @"E:\AppServ\Example.txt"; if (!File.Exists(path)) { File.Create(path); TextWriter tw = new StreamWriter(path); tw.WriteLine("The very first line!"); tw.Close(); } else if (File.Exists(path)) { TextWriter tw = new StreamWriter(path); tw.WriteLine("The next line!"); tw.Close(); } But the first line seems to always get overwritten... how can I avoid writing on the same line (I'm using this in a loop)? I know it's a pretty simple thing, but I never used the

From my iPhone application I'm outputting data from text to a file. When opened with windows notepad, the data is all on one line and where there should be a new line a block character is present (showing that it's an unrecognized character or something). When opened with windows wordpad, it displays just fine. Would there be something wrong in my code? I'm simply output '\n' when i want a new line. NOTE : It's working fine with other editors like textedit, MS Word on mac as well as on windows. Windows default is to use \r\n as end-of-line marker. Notepad only recognises that, other text

I need to delete an exact line from a text file but I cannot for the life of me workout how to go about doing this. Any suggestions or examples would be greatly appreciated? Related Questions Efficient way to delete a line from a text file (C#) If the line you want to delete is based on the content of the line: string line = null; string line_to_delete = "the line i want to delete"; using (StreamReader reader = new StreamReader("C:\\input")) { using (StreamWriter writer = new StreamWriter("C:\\output")) { while ((line = reader.ReadLine()) != null) { if (String.Compare(line, line_to_delete) ==

I want to make modifications to the middle of a text file using c++, without altering the rest of the file. How can I do that? If the replacement string is the same length, you can make the change in place. If the replacement string is shorter, you may be able to pad it with zero-width spaces or similar to make it the same number of bytes, and make the change in place. If the replacement string is longer, there just isn't enough room unless you first move all remaining data. Use std::fstream . The simpler std::ofstream would not work. It would truncate your file (unless you use option std::ios

I currently have 2 BufferedReader s initialized on the same text file. When I'm done reading the text file with the first BufferedReader , I use the second one to make another pass through the file from the top. Multiple passes through the same file are necessary. I know about reset() , but it needs to be preceded with calling mark() and mark() needs to know the size of the file, something I don't think I should have to bother with. Ideas? Packages? Libs? Code? Thanks TJ What's the disadvantage of just creating a new BufferedReader to read from the top? I'd expect the operating system to cache

Im currently looking for a method to set variables in a windows batch file from linkes in txt document. So for example, if the text file reads: http://website1.com http://website2.com http://website3.com I can hopefully output them to variables in the batch. Example: set var1="Line one of text file, ex: http://website1.com" set var2="Line two of text file, ex :http://website2.com" set var3="Line three of text file, ex: http://website3.com" Any help is appreciated, thanks in advance! The FOR /F loop command can be used to read lines from a text file: @echo off setlocal ENABLEDELAYEDEXPANSION