How do I redirect the output of a command in Command Prompt?
To redirect the output of a command to a file, type the command, specify the > or the >> operator, and then provide the path to a file you want to the output redirected to. For example, the ls command lists the files and folders in the current directory.
How do I redirect the output of the command to a text file?
What to Know
- The > redirection operator goes between the ipconfig command and the file name.
- If the file already exists, it’ll be overwritten. If it doesn’t, it will be created.
- The >> operator appends the file. Instead of overwriting the output file, it appends the command output to the end of the file.
How to set a variable to the output of a command?
To set a variable to the output of a command, use for /f: for /f “tokens=*” %%a in (‘command’) do set _CmdResult=%%a. The problem is, to use a pipe in the command you need to escape it with the command line escape character: ^, therefore: ^|.
How to read output of a command into a batch file variable?
It’s Day Two of Batch File Week. Don’t worry, it’ll be over in a few days. There is no obvious way to read the output of a command into a batch file variable. In unix-style shells, this is done via backquoting. The Windows command processor does not have direct backquoting, but you can fake it by abusing the FOR command. Here’s the evolution:
How do I Capture the output of a command?
If you want to capture the output into a variable, just update the action: for /f %%i in (‘printappdir’) do set RESULT=%%i echo The directory is %RESULT% If the command has multiple lines of output, then this will end up saving only the last line, since previous lines get overwritten by subsequent iterations.
What does it mean when a command outputs to the console?
That is, the command’s output is still (also) written to the output stream, and if that output isn’t consumed (by another command, a variable assignment, or a redirection), it still prints to the console. if you want to see a command’s output in the console while also capturing that output in a variable for later analysis.