How do I redirect stdout and stderr to a file in Windows?

When you redirect console output using the “>” symbol, you are only redirecting STDOUT. In order to redirect STDERR you have to specify ‘2>’ for the redirection symbol. This selects the second output stream which is STDERR.

How do I redirect stdout?

The regular output is sent to Standard Out (STDOUT) and the error messages are sent to Standard Error (STDERR). When you redirect console output using the > symbol, you are only redirecting STDOUT. In order to redirect STDERR, you have to specify 2> for the redirection symbol.

Which of the following commands redirects its standard output to the file stdout and redirects its standard error to the file stderr?

Conclusion

Operator Description
command>filename Redirect stdout to file “filename.”
command>>filename Redirect and append stdout to file “filename.”
command 2>filename Redirect stderr to file “filename.”
command 2>>filename Redirect and append stderr to file “filename.”

How do I add stdout to a file?

1 Answer

  1. Either use this construct: cmd >>file. txt 2>&1 where >> file appends the output to the file and 2>&1 redirects the stderr to stdout .
  2. Or use cmd &>>file ensuring that you have bash version >4 (using bash –version ) and #!/bin/bash at the beginning of file ( #!/bin/sh won’t work).

How do I redirect output to a file?

List:

  1. command > output.txt. The standard output stream will be redirected to the file only, it will not be visible in the terminal.
  2. command >> output.txt.
  3. command 2> output.txt.
  4. command 2>> output.txt.
  5. command &> output.txt.
  6. command &>> output.txt.
  7. command | tee output.txt.
  8. command | tee -a output.txt.

How do I redirect a file in Windows?

Open User Configuration > Policies > Windows Settings > Folder Redirection. Right-click Documents and click Properties. Choose Basic – Redirect everyone’s folder to the same location. Under Target folder location choose Create a folder for each user under the root path.

How would you redirect output from stdout to a file?

2 Answers

  1. Redirect stdout to one file and stderr to another file: command > out 2>error.
  2. Redirect stdout to a file ( >out ), and then redirect stderr to stdout ( 2>&1 ): command >out 2>&1.