Errorlevel checking is done as a greater-or-equal check, so any non-0 exit value will trigger the jump. Probability of throwing a die Is the Set designed properly? And, no, I'm not Steve Jansen the British jazz drummer, though that does sound like a sweet career. Batch files do terminate if there is a syntax error. have a peek at this web-site
up vote 180 down vote favorite 39 I have a batch file that's calling the same executable over and over with different parameters. In that case we can use generic checks for failures like this: IF EXIST %outfile% (DEL /F %outfile%) CALL some_script.bat -o %outfile% IF NOT EXIST %outfile% (ECHO ERROR & EXIT /b) Start checking the highest errorlevel that can be expected, then check for the one below, etcetera: IF ERRORLEVEL 255 GOTO Label255
IF ERRORLEVEL 254 GOTO Label254
A certain errorlevel may mean anything the programmer wanted it to. The arguments the BAT file has include the /perf /f /r /b /scan switches –Canadian Luke Jan 3 '13 at 23:14 2 good one! share|improve this answer edited Nov 14 '12 at 10:54 Juuso Ohtonen 2,17232351 answered Jan 22 '12 at 21:58 Fowl 2,57711328 11 Much nicer and more useful than "if-errorlevel"! –Dmitry Fedorkov
But ERRORLEVEL is not the only recourse for batch - see my answer –dbenham Jun 13 '13 at 11:30 add a comment| up vote 2 down vote A successful ping on exit /b %errorlevel% See also question about exiting batch file subroutine. We'll see how we can use this later. Batch File On Error Goto 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
I also recommend documenting your possible return codes with easy to read SET statements at the top of your script file, like this: SET /A ERROR_HELP_SCREEN=1 SET /A ERROR_FILE_NOT_FOUND=2 Note that Batch File Error Handling Tutorial Equal pay for equal work is controversial? Seasonal Challenge (Contributions from TeXing Dead Welcome) Why was Susan treated so unkindly? my response Warning messages typically don’t effect the return code.
How can I avoid this? Batch Set Errorlevel There is a corollary (call) that does nothing except set the ERRORLEVEL to 1. Disproving Euler proposition by brute force in C aligning shapes in latex C++11 - typeid uniqueness Are there textual deviations between the Dead Sea Scrolls and the Old Testament? Run: test.bat > NUL and you should see: C:\>test.bat This text goes to Standard Error This text goes to the Console C:\>_ We redirected Standard Output to the NUL device, and
DOS/Win9x's command.com or Win2k+'s cmd.exe? https://support.microsoft.com/en-us/kb/110930 Why does the kill-screen glitch occur in Pac-man? Return Error Code From Batch File Or use CHOICE.COM, available in all DOS6.* and up versions, to set an errorlevel: ECHO 5 | CHOICE /C:1234567890 /N and ECHO E | CHOICE /C:ABCDEFGHIJ /N will both result in Windows Batch Errorlevel Does the key vector approach in RingCT represent linkability among transactions?
DIR>filename.txt and DIR>filename.txt are identical, ECHOHelloworld>filename.txt and ECHOHelloworld>filename.txt are not, even though they are both valid. http://speciii.com/batch-file/windows-batch-trap-error.html deer in German: Hirsch, Reh Why cast an A-lister for Groot? What 2>&1 does, is merge Standard Error into the Standard Output stream, so Standard output and Standard Error will continue as a single stream. The general idea was this: CTTY NUL ECHO Echo whatever you want, it won't be displayed on screen no matter what. Batch File Error Checking
Are basis vectors imaginary in special relativity? Use 1>&2 to send text to Standard Error. myProgram.exe || PAUSE would cause the batch file to pause if myProgram.exe returns a non-zero error level. Source Hopefully I don't have to build a tree of .bat files just to achieve this.
If quitting CMD.EXE, sets the process exit code with that number. [Brought to my attention by Maor Conforti. Batch File Continue On Error However, this can be fixed by using the following code to check for non-zero return codes: IF %ERRORLEVEL% NEQ 0 ... This means most of the time we only need to check IF ERRORLEVEL 1 ...
Auto publishing for specific items Why can't the second fundamental theorem of calculus be proved in just two lines? My 21 yr old adult son hates me Securing a LAN that has multiple exposed external at Cat 6 cable runs? Why mention town and country of equipment manufacturer? Batch Exit /b It isn’t always pretty, but, it gets the job done.
The error branch will fire if the last command in the success branch raises an error. Setting errorlevels MS-DOS & Windows 9x: Use ERRORLVL.EXE from OzWoz Software, or SETERLEV.COM 1.0 from Jim Elliott to test batch files that (are supposed to) check on errorlevels. In DOS for the rest of us, we can use FOR loops to determine the errorlevel: @ECHO OFF REM Reset variables FOR %%A IN (1 10 100) DO SET ERR%%A= REM have a peek here Is it required that I upgrade to Sierra Why was Vader surprised that Obi-Wan's body disappeared?
To check errorlevels during batch file development, use either COMMAND/Zyourbatch.bat to display the errorlevel of every command executed in MS-DOS 7.* (Windows 95/98), or PROMPTErrorlevel$Q$R$_$P$G in OS/2 Warp (DOS) sessions. To illustrate my story there are some examples you can try for yourself. windows batch-file exit-code share|improve this question asked Aug 10 '10 at 18:12 Dlongnecker 1,56721437 add a comment| 2 Answers 2 active oldest votes up vote 30 down vote accepted Sounds like cmd2 executes even if the first command fails.
Should the sole user of a *nix system have two accounts? from Windows Command Prompt for more information. share|improve this answer answered Jul 22 '09 at 10:52 Brad Bruce 5,47112651 2 Yeah, I wish I had done it using power shell, have a felling hacking a batch script Note: 'exit 1' will cause command prompt to close, to avoid this, remove command 'exit 1': @ECHO OFFREM COPY all copy /Y D:\exe\appserver\release\appserver.exe" D:\AppServerDeployIF %ERRORLEVEL% NEQ 0 GOTO ERROR_HANDLER copy
Not the answer you're looking for? The improved error handling was another. 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