Output batch file results to log file

I assembled all the commands in a batch file, and it runs, but I would like the batch file, when run to output the results to a text file log.

Is there a command that I can add to the batch that would do so? Keep in mind I do not want to run the batch from cmd, then redirect output ; I want to redirect the output from inside the batch, if that is possible. The simple naive way that is slow because it opens and positions the file pointer to End-Of-File multiple times. Every now and then you may want to repeatedly write to two or more files.

You might also want different messages on the screen. I chose to use handles 9 and 8 in reverse order because that way is more likely to avoid potential permanent redirection due to a Microsoft redirection implementation design flaw when performing multiple redirections on the same command. It is highly unlikely, but even that approach could expose the bug if you try hard enough. If you stage the redirection than you are guaranteed to avoid the problem. I know this is an older post, but someone will stumble across it in a Google search and it also looks like some questions the OP asked in comments weren't specifically addressed.

Also, please go easy on me since this is my first answer posted on SO. So for example, this:. Will create a file like what you see in this screenshot of the file in the target directory. ECHO Tee. Add these two lines near the top of your batch file, all stdout and stderr after will be redirected to log.

I used the command above in my batch file and it works. In the log file, it shows the results of my command. Adding the following lines at the bottom of your batch file will grab everything just as displayed inside the CMD window and export into a text file:.

This may fail in the case of "toxic" characters in the input. Reading the output of a command into a batch file variable Raymond. July 31st, Read next How do I find the most recently created file in a directory from a batch file? Remember, nobody actually likes batch programming. You merely tolerate it. Today, we'll find the most recently-created item Redirect the output.

Back to Software Forum. Start or search. Start New Discussion. Create a new discussion If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem.

By definition Console isn't a stream. There is another stream, Standard Input : many commands accept input at their Standard Input instead of directly from the keyboard. Probably the most familiar example is MORE :. The result may differ for different operating system versions, but in Windows XP I get the following error message:. COM isn't possible actually it is, by using the CTTY command, but that would redirect all output including Console, and input, including keyboard.

You see? What did you get? It looks like CMD.