Steps Exit codes for batch files Use the command EXIT /B %ERRORLEVEL% at the end of the batch file to return the error codes from the batch file EXIT /B at Too bad DOS doesn’t support constant values like Unix/Linux shells. Thanks for Noe Parenteau for this tip. DOS/Win9x's command.com or Win2k+'s cmd.exe? weblink
same-executable-over-and-over.exe /with different "parameters" if %errorlevel% neq 0 exit /b %errorlevel% If you want the value of the errorlevel to propagate outside of your batch file if %errorlevel% neq 0 exit SomeFile.exe IF %ERRORLEVEL% EQU 9009 ( ECHO error - SomeFile.exe not found in your PATH ) It’s hard to know this stuff upfront – I generally just use trial and error Some Final Polish One small piece of polish I like is using return codes that are a power of 2. Join them; it only takes a minute: Sign up How to exit a batch program upon error? http://stackoverflow.com/questions/734598/how-do-i-make-a-batch-file-terminate-upon-encountering-an-error
And keep in mind the way that DOS handles the "IF ERRORLEVEL" tests. Meaning of '2> >(command)' Redirection in Bash Firearm transfer between CA and WA Countries where lecture duration does not exceed one hour How far above a waterfall should you be to i can't get CALL
Since the same variable get expanded to different values on different computers. Windows 2000 and later: In Windows 2000 & XP a new /B switch has been added to the EXIT command, enabling the batch file to quit with a return code: EXIT ping -invalid-arg || goto :error echo OH noes, this shouldn't have succeeded. Batch Exit /b You may also want to check for specific error codes.
Where are my downvotes? Return Error Code From Batch File To execute a follow-on command after sucess, we use the && operator: SomeCommand.exe && ECHO SomeCommand.exe succeeded! Unfortunately, there's no way to trap and handle errors like there is with bash. Browse other questions tagged batch-file or ask your own question.
share|improve this answer edited Nov 14 '12 at 10:54 Juuso Ohtonen 2,21232352 answered Jan 22 '12 at 21:58 Fowl 2,59711328 11 Much nicer and more useful than "if-errorlevel"! –Dmitry Fedorkov Batch File Continue On Error My question is does this work for all non-zero exit codes? Purpose of pins on side edge of QFN package When and why use triangle solder joints What happens after reaching 99x items of a kind? same-executable-over-and-over.exe /with different "parameters" if %errorlevel% neq 0 exit /b %errorlevel% If you want the value of the errorlevel to propagate outside of your batch file if %errorlevel% neq 0 exit
How can you tell if an error occurred and decide if you need to continue to the next command or not? http://bluefoxta.com/batch-file/batch-disappear.php Is there a command for running a script according to its shebang line? 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
If quitting CMD.EXE, set the process exit code no. some_program.exe 2>&1 | FIND "error message here" && (ECHO ERROR & EXIT /b) some_program.exe 2>&1 | FIND "Done processing." || (ECHO ERROR & EXIT /b) share|improve this answer edited Nov 26 goto :EOF :error echo Failed with error #%errorlevel%. check over here Errorlevels are not a standard feature of every command.
Firearm transfer between CA and WA Why rotational matrices are not commutative? Batch Set Errorlevel Join them; it only takes a minute: Sign up How do I make a batch file terminate upon encountering an error? goto :EOF :error echo Failed with error #%errorlevel%.
Basically, I want the equivalent of MSBuild's ContinueOnError=false. The same goes for other dynamic environment variables like CD (current directory), DATE (current date), TIME (current time), RANDOM (random decimal number between 0 and 32767), CMDEXTVERSION (current Command Processor Extensions wscript.quit
Browse other questions tagged ms-dos stderr or ask your own question. It’s my air hole up to the world. A very helpful feature is the built-in DOS commands like ECHO, IF, and SET will preserve the existing value of %ERRORLEVEL%. this content share|improve this answer edited Nov 14 '12 at 10:54 Juuso Ohtonen 2,21232352 answered Jan 22 '12 at 21:58 Fowl 2,59711328 11 Much nicer and more useful than "if-errorlevel"! –Dmitry Fedorkov
What does the letter 'u' mean in /dev/urandom? However, I don’t use this technique because programs can return negative numbers as well as positive numbers. Syntax EXIT [/B] [exitCode] Key /B When used in a batch script, this option will exit only the script (or subroutine) but not CMD.EXE exitCode Sets the %ERRORLEVEL% to a numeric 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
Purpose of pins on side edge of QFN package Could the atmosphere be depleted and put in to bottles? echo. 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. Windows NT4 and later: In NT4 use either COLOR00 or VERIFYOTHER2>NUL to set an errorlevel 1.
exitCode Specifies a numeric number. But since the DOS command to determine the return code is IF ERRORLEVEL, most people use the name errorlevel. Because there's a lot of output on the screen and I'm doing other things, most of the time I miss that there was a build error. Description Every command or script returns with the status of execution, which is referred as return status or exit codes.
Or is it?