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Batch File Redirect Error Output

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It's ok to use spaces in redirection commands. Realism of a setting with several sapient anthropomorphic animal species Did Donald Trump call Alicia Machado "Miss Piggy" and "Miss Housekeeping"? net stop w3svc >NUL 2>&1.. From http://support.microsoft.com/kb/110930: When redirecting output from an application using the ">" symbol, error messages still print to the screen. this contact form

This is a fine demonstration of only Standard Output being redirected to the NUL device, but Standard Error still being displayed. So the interpretation of the parenthesis and redirection is delayed, or deferred. more hot questions question feed about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Science The command interpreter first creates the empty destination file, then runs the DIR command and finally saves the redirected text into the file.

Batch Redirect Command Output To File

REM *** WARNING: THIS WILL NOT REDIRECT STDERR TO STDOUT **** dir 2>&1 > a.txt share|improve this answer edited Oct 9 '15 at 19:40 Peter Mortensen 10.2k1369107 answered May 23 '13 So you need to set up stream 1 first –FrinkTheBrave Aug 4 '14 at 8:31 @FrinkTheBrave but stream 1 is standard output (e.g. Join them; it only takes a minute: Sign up Windows Batch Script: Redirect ALL output to a file up vote 14 down vote favorite 3 I am running various Java benchmarks

Never mind, I'm just nitpicking... –Eitan T Nov 15 '12 at 14:21 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google The Woz Monitor GTIN validation Which requires more energy: walking 1 km or cycling 1 km at the same speed? Are there any 'smart' ejection seats? Batch File Redirect Output To Text File SomeCommand.exe > temp.txt OtherCommand.exe >> temp.txt By default, the > and >> operators redirect stdout.

A safer way to redirect STARTed commands' output would be to create and run a "wrapper" batch file that handles the redirection. Batch File Redirect Output Append I execute the (dacapo) benchmark like this: C:\VM\jre\bin\java -jar C:\benchmarks\dacapo-9.12-bach.jar %arg1% > %time::=% I pass the type of benchmark in over a parameter, thats what %arg1% is. Redirection usually results in temporary files. systeminfo | findstr /c:"Host Name" systeminfo | findstr /c:"Domain" ipconfig /all | find "Physical Address" ipconfig | find "IPv4" ipconfig | find "Default Gateway" ) @pause share|improve this answer edited Feb

Use >CON to send text to the screen, no matter what, even if the batch file's output is redirected. Batch File Redirect Output To Variable This can be useful for error messages. For an overview of redirection and piping, view my original redirection page. ECHO By the way, did I warn you that the keyboard doesn't work either?

Batch File Redirect Output Append

that worked for me! –eugene.polschikov Nov 3 '14 at 12:44 Love the solutions where I can set it for the remainder of the file –Sam Feb 2 at 22:36 Output from a console (Command Prompt) application or command is often sent to two separate streams. Batch Redirect Command Output To File share|improve this answer answered Sep 16 at 18:20 Anthony 465 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up Batch File Redirect Output To Console And File The > operator sends, or redirects, stdout or stderr to another file.

That's because >NUL redirects all Standard Output to the NUL device, which does nothing but discard it. weblink Contact Failed Mail Donate Batch How To ... In this case, we could also have used test.bat>NUL2>NUL This redirects Standard Output to the NUL device and Standard Error to the same NUL device. Standard Error is the stream where many (but not all) commands send their error messages. Batch File Redirect Output To File And Screen

Copy the following code into Notepad and save it as "test.bat": @ECHO OFF ECHO This text goes to Standard Output ECHO This text goes to Standard Error 1>&2 ECHO This text A safer way to redirect STARTed commands' output would be to create and run a "wrapper" batch file that handles the redirection. Also, please go easy on me since this is my first answer posted on SO. :) To redirect the output to a file using a dynamically generated file name, my go-to http://sovidi.com/batch-file/batch-file-redirect-error.php How to deal with a very weak student?

File handle 2 is STDERR, redirected by 2>. Batch File Redirect Output To Null How to deal with a very weak student? How to handle spending money for extended trip to Europe?

asked 2 years ago viewed 61118 times active 15 days ago Linked 0 How I can run commands using batch and save the output in text file? 0 Run bat file

The same result you got with ECHOHelloworld without the redirection. That still does not explain it imho. –MarioDS Nov 3 '15 at 12:04 @MDeSchaepmeester, if you do dir 2>&1 > a.txt, you're first redirecting (>) stream 2 (stderr) to Which requires more energy: walking 1 km or cycling 1 km at the same speed? Windows Batch File Redirect Output You can see that I am redirecting the output to a textfile.

For "real" (or "legacy") DOS, (ab)use the PROMPT codes $L, $G and $B to display and/or redirect pipe and redirection symbols. asked 3 years ago viewed 16014 times active 2 years ago Linked 0 How to redirect net command output to file in windows batch file? Unfortunately, it can be done only in the old MS-DOS versions that came with a CTTY command. http://sovidi.com/batch-file/batch-file-redirect-std-error.php more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed

Display & Redirect Output On this page I'll try to explain how redirection works. Take a look at some of the examples available, they will give you an impression of the many possibilities of redirection page last uploaded: 2016-09-19, 14:57 Menu Home News FAQ Search There is another stream, Standard Input: many commands accept input at their Standard Input instead of directly from the keyboard. So for completeness, here's a version writing into separated files: set STDOUT=stdout.log set STDERR=stderr.log echo Some text 1>> %STDOUT% 2>> %STDERR% a.exe 1>> %STDOUT% 2>> %STDERR% b.exe 1>> %STDOUT% 2>> %STDERR%

The >> operator is a slight variant that appends the output to a target file, rather than overwriting the target file. Much better, isn't it? console) if not explicitly specified.