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Dos Command Error Log

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Advertisement Recent Posts Slows down and freezes CoolBurn replied Nov 20, 2016 at 12:15 AM My computer is going CocoCobanas! To make things worse, each device exists in every directory on every drive, so if you used redirection to NUL in, say, C:\ and after that you use it again in But at least you would know that there was an error The file will always be created, but if there are no errors, it will have a length of zero. The >> (for either STDOUT or STDERR) will APPEND not REPLACE the file. navigate here

To use more than one filter in the same command, separate the filters with a pipe (|). If Dirlist.txt exists, Cmd.exe replaces the information in the file with the output from the dir command. XP does not mind but vista does not like the idea of changes being made to it, especially by scripts. I can assure you I did try!

Batch Redirect Output To File And Console

Some notes on this subject can be found on my Temporary Files page. It's ok to use spaces in redirection commands. Present perfect + last year 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 / There are several apps to allow this though, search the web for windows tee command.

xcopy "%source1%" "G:\laptop_backup\backup\" /e /q /c /EXCLUDE:C:\backup\skipme.txt 2>%temp%\tmp}1{.txt If [COLOR=Red][B]%ERRORLEVEL% ==[/B][/COLOR] 0 GoTo _noerror1 :: Echo the command and the error to the screen so it will end up in the I found out and remember it originally from the firefox help file on the location of the profile folder. For "real" (or "legacy") DOS, (ab)use the PROMPT codes $L, $G and $B to display and/or redirect pipe and redirection symbols. Batch File Log Output With Date For example, the following command sorts a directory:dir | sortIn this example, both commands start simultaneously, but then the sort command pauses until it receives the dir command's output.

Where you put 2>&1 is rather critical. Batch File Redirect Output To File The input or output stream location is referred to as a handleThe following table lists operators that you can use to redirect command input and output streams.Redirection operatorDescription>Writes the command output If you're new to Tech Support Guy, we highly recommend that you visit our Guide for New Members. Can Mage Hand wield a Shield?

You guys rock Regards, The_Champs The_Champs, Mar 24, 2010 #5 Sponsor This thread has been Locked and is not open to further replies. Dos Redirect Stderr To Null For example, the following command redirects handle 2 (that is, STDERR) into handle 1 (that is, STDOUT):1<&2Duplicating handles The & redirection operator duplicates output or input from one specified handle to The regular output is sent to Standard Out (STDOUT) and the error messages are sent to Standard Error (STDERR). echo xcopy [COLOR=Red][B]"[/B][/COLOR]%appdata[B][COLOR=Red]&[/COLOR][/B]\Mozilla\firefox\profiles[COLOR=Red][B]"[/B][/COLOR] "G:\laptop_backup\backup\firefox\" /e /q /c >>C:\backup\log.txt xcopy [COLOR=Red][B]"[/B][/COLOR]%appdata[B][COLOR=Red]&[/COLOR][/B]\Mozilla\firefox\profiles[COLOR=Red][B]"[/B][/COLOR] "G:\laptop_backup\backup\firefox\" /e /q /c >>C:\backup\log.txt 2>C:\backup\error.txt [COLOR=Blue][B]Should be %, will cause File Not found to be put in log by next

Batch File Redirect Output To File

For example, if you start a program with <&2, all attempts to read handle 0 fail because handle 2 is initially opened with write-only access.  Note•Zero is the default handle for check it out In most cases the Exit Code is the same as the ErrorLevel Numeric handles: STDIN = 0 Keyboard input STDOUT = 1 Text output STDERR = 2 Error text output UNDEFINED Batch Redirect Output To File And Console And yes i want to see on the screen certain echo lines for the users (want to keep the interface simple). Batch File Logging So you need to set up stream 1 first –FrinkTheBrave Aug 4 '14 at 8:31 1 @FrinkTheBrave but stream 1 is standard output (e.g.

If you have already redirected stdout, and want stderr redirected to the same file, you must use the 2>& special form, rather than just specifying the same file twice. check over here It's the little stuff like that, and hitting & for % (which I've been doing all day) that will drive ya nuts new tech guy said: ↑ Code: @echo off echo For example, if a handle has write-only access, all duplicates of that handle have write-only access. If Exist G:\ net use G: /d If Exist H:\ net use H: /d net use G: \\mybookworld\vincent /USER:vincent XXXXXXXXX net use H: \\mybookworld\public echo Modifying backup directories... Batch File Output To Text File Append

On Marc Stern's web site I found a great solution: just place the redirections before the actual commands. So i figure i can capture the stdin,stdout, and stderr command of each and after each command add a type command to combine the error file with the main log. Miscellaneous Tweaks Link Speed Test Web Stuff Conversions My Photo Galleries About This Site Disclaimer News FAQ Search What's New Objective Site Policy Your Preferences Credits The Making Of... his comment is here 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.

Do American foods contain unsafe levels of glyphosates What's a word/phrase like "compulsion" or "addiction" that is more about guilt than physiology or anxiety? Windows Tee Are you looking for the solution to your computer problem? You can run the file as a .bat or .cmd, either works.

You'd definitely want to use a subroutine to output the error log info rather than having the same echo commands for each command in the file.

Sci-fi book about people living in a giant bubble in space Mountaineering with 6 y.o. Why are the memory addresses of string literals so different from others', on Linux? Sometimes the lines can be padded with spaces to align all redirection signs and make the batch file more readable. Batch File Output To Text File With Timestamp DIR>filename.txt and DIR>filename.txt are identical, ECHOHelloworld>filename.txt and ECHOHelloworld>filename.txt are not, even though they are both valid.

ECHO By the way, did I warn you that the keyboard doesn't work either? Click here to join today! It then copies the .pst files and if a restore is done, all i need to do is switch the pst in the system from time of image (it was already http://sammcallister.com/batch-file/dos-command-error-message.html Read few old posts but couldnt able to understand them.

Similar Threads - write file batch Delete old files from a folder with some squence by batch Deepak54321, May 10, 2016, in forum: DOS/Other Replies: 2 Views: 1,244 Deepak54321 May 10, Besides being used for redirection to the NUL device, with CTTYCOM1 the control could be passed on to a terminal on serial port COM1. Use 1>&2 to send text to Standard Error. I was thinking of doing everything so i know if any line anywhere blows up for some reason but it may not be needed or necessary.

and if a particular command needs an added switch, you just add it for that one command %xcopycmd%m You can also use Set switches=/ceq then xcopy %switches% Code: @echo off echo net stop w3svc >NUL 2>&1.. That's because we redirected the Standard Error stream to the NUL device, but the ECHO command sent its output to the Standard Output stream, which was not redirected. Short URL to this thread: https://techguy.org/908866 Log in with Facebook Log in with Twitter Log in with Google Your name or email address: Do you already have an account?

Is it possibl I can leave the message is displaied in both console and log file You need "tee". After you type the < or > operator, you must specify where you want to read or write the data. ECHO The only way to get control over the computer again is a cold reboot, ECHO or the following command: CTTY CON A pause or prompt for input before the CTTYCON And if it has an error i want the error to be displayed in the log file.

The find command selects only file names that contain the string "LOG." The more command displays the file names that are selected by the find command, one Command Prompt window at This can be useful for error messages. Backup Complete![/frontend] new tech guy, Sep 13, 2008 #3 new tech guy Thread Starter Joined: Mar 27, 2006 Messages: 5,178 Ok an update, i found out how to combine the Also known as a pipe.

With Polearm Mastery and Shield Mastery, can I attack an approaching monster, shove it with my shield, and get a second attack, all on its turn? You can also redirect to a printer with > PRN or >LPT1 Multiple commands on one line In a batch file the default behaviour is to read and expand variables one Show Ignored Content Page 1 of 2 1 2 Next > As Seen On Welcome to Tech Support Guy! Are you looking for the solution to your computer problem?

net use G: /d net use H: /d net use G: \\mybookworld\vincent /USER:vincent XXXXXXXXX net use H: \\mybookworld\public echo Modifying backup directories... Use this: backup.cmd 1>logfile.txt 2>errorlog.txt Best to also echo a day/date line to each file at the start so you can match errors to the same run. Note however, that a space between an ECHO command and a > will be redirected too.