How to Log Console Screen into a Text File ?

Question

Possible Duplicate:
Mirroring console output to a file

I've a console application in C# and I want to Log into a text file every text appears on the screen. How to do that ?

Unfortunately this thread is closed despite of my comment about the Mirroring console output to a file. The accepted post as answer by that thread IS NOT CORRECT. So why cannot ask the question again? I'm using console interactively and want a copy of all the text on console in a text file. SOS

Answer 1

A simple Google search result : here

Sorry I am no longer programming with C# but I checked to code and it does make sense in this approach :)

Answer 2

Replace all references to the Console class with the System.Diagnostics.Trace class. You can add a ConsoleTraceListener and a TextWriterTraceListener, and then everything you output to the console will end up in both places.

Answer 3

You could use Console.SetOut to redirect the output to a file, but then you wouldn't get output to the console as well unless you used a TextWriter that streamed to both.

You could try using System.Diagnostics.Trace and then adding listeners to both the console and a file.

<configuration>
  <system.diagnostics>
    <trace autoflush="false" indentsize="4">
      <listeners>
        <add name="configConsoleListener"
             type="System.Diagnostics.ConsoleTraceListener" />
        <add name="fileLogger" 
             type="System.Diagnostics.TextWriterTraceListener" 
             initializeData="LogFile.log" />
        <remove name="Default" />
      </listeners>
    </trace>
  </system.diagnostics>
 </configuration>

Answer 4

C:\>yourconsoleapp.exe > yourtextfile.txt

edit: This assumes your console app requires no user input.

Answer 5

This may be overly simplistic, but at a command prompt, if you do:

C:\>MyApplication >> output.txt

That will write all output from that given app to output.txt

If you don't actually need a programmatic solution, this might do the trick.

Answer 6

Use log4j.

1. Go to log4j website and download dll.
2. Reference dll in your project.
3. Add this to top of your app.config

<appender name="FileAppender" type="log4net.Appender.FileAppender">
    <file value="log-file.txt" />
    <appendToFile value="true" />
    <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] -%message%newline" />
    </layout>
</appender>


<appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
    <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] -%message%newline" />
    </layout>
</appender>

1. Put this as a member of any class you want to log to:

   private static readonly ILog log = LogManager.GetLogger(typeof(Foo));

2. Put in a line like this to log:

log.Debug("Hello world!");