Return Code Conventions By convention, command line execution should return zero when execution succeeds and non-zero when execution fails. If quitting CMD.EXE, sets the process exit code with that number. [Brought to my attention by Maor Conforti. The first program/script must conform to the convention of returning 0 on success and non-0 on failure for this to work. By default, the command processor will continue executing when an error is raised. have a peek here
Or at least stop executing so when I come back to the command window I can see that there was a failure? @echo off if "%1"=="?" GOTO HELP if NOT "%1"=="" Why can't the second fundamental theorem of calculus be proved in just two lines? Where will the second Fantastic Beasts film be set? 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 http://stackoverflow.com/questions/734598/how-do-i-make-a-batch-file-terminate-upon-encountering-an-error
Note: Environment variables are a set of dynamic named values that can affect the way, running processes will behave on a computer. 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) And keep in mind the way that DOS handles the "IF ERRORLEVEL" tests.
share|improve this answer answered Apr 14 '12 at 1:06 jpmartins 2281311 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up vote 180 down vote favorite 39 I have a batch file that's calling the same executable over and over with different parameters. And keep in mind the way that DOS handles the "IF ERRORLEVEL" tests. Batch File Exit Code 1 Sadly, even skilled Windows programmers overlook the importance of return codes.
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 Windows Batch Errorlevel Why is the size of my email about a third bigger than the size of its attached files? \def inside of \def not visible in titles or captions Using "están" vs share|improve this answer edited Oct 27 '14 at 14:34 answered Apr 9 '09 at 15:30 Mike Bethany add a comment| up vote 0 down vote We cannot always depend on ERRORLEVEL, up vote 54 down vote favorite 5 Inside a batch file on Windows, I use 7-zip like this: ...\right_path\7z a output_file_name.zip file_to_be_compressed How could I check the exit code of 7z
For example, you can test that an executable program or script is in your PATH by simply calling the program and checking for return code 9009. Bat File Error Handling Why does a shorter string of lights not need a resistor? Join them; it only takes a minute: Sign up Stop batch script from executing while encountering error up vote 4 down vote favorite So I'm building multiple client using the same 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
But you really need to know what the program returns on errors. Join them; it only takes a minute: Sign up How do I make a batch file terminate upon encountering an error? Return Error Code From Batch File DOS/Win9x's command.com or Win2k+'s cmd.exe? Batch Set Errorlevel This is rare for scripts intended for interactive use, but, it can be super helpful when writing scripts you support but you don’t have access to the target systems. @ECHO OFF
Try it without them or try the other versions I added. –Dennis Williamson Oct 1 '10 at 5:24 Great, thanks a lot !! –Misha Moroshko Oct 1 '10 at navigate here my matrix doesnt fit the page Why cast an A-lister for Groot? Join them; it only takes a minute: Sign up How do I make a batch file terminate upon encountering an error? Description Every command or script returns with the status of execution, which is referred as return status or exit codes. Exit /b
Jumping to EOF in this way will exit your current script with the return code of 1. Use the code above wherever you would have used IF ERRORLEVEL 1 ... How can tilting a N64 cartridge causes such subtle glitches? Check This Out share|improve this answer edited Oct 1 '10 at 5:27 answered Oct 1 '10 at 4:58 Dennis Williamson 58.1k11105141 I tried your code.
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 Checking wscript.quit
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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 The conventional technique to check for a non-zero return code using the NEQ (Not-Equal-To) operator of the IF command: IF %ERRORLEVEL% NEQ 0 ( REM do something here to address the Is there a way to stop executing the following tasks if there's an error, and show a popup message to get my attention? Exit /b Errorlevel asked 6 years ago viewed 95287 times active 3 years ago Blog Stack Overflow Podcast #93 - A Very Spolsky Halloween Special Visit Chat Linked 0 CMD - Successful or not
Does the key vector approach in RingCT represent linkability among transactions? When I added a resistor to a set of christmas lights where I cut off bulbs, it gets hot. Output a googol copies of a string Sum other numbers =TEXT([Date Column],"MMMM") issue aligning shapes in latex Positional Bathroom Etiquette What is mathematical logic? this contact form In the case of an infinite loop, this EXIT /b behaviour will cause the script to hang until manually terminated with Ctrl + C Exiting nested FOR loops, if EXIT /b
Most malformed shell commands will be treated as programs to execute (and, hopefully, whatever program gets executed doesn't do something bad). How much and what type of damage does Warlock Thought Shield deal? If quitting CMD.EXE, set the process exit code no. Why didn’t Japan attack the West Coast of the United States during World War II?
Hi, I'm Steve. share|improve this answer edited Apr 4 at 16:06 DangerZone 9591821 answered Apr 9 '09 at 15:03 system PAUSE 17.7k164857 6 Is there a way to state it once for the echo. However, I don’t use this technique because programs can return negative numbers as well as positive numbers.
Why is the FBI making such a big deal out Hillary Clinton's private email server? Checking the errorlevel of programs you call is about all you've got for error handling. When you hit an error like this the script stops dead. Even better, I can repeatedly call the bitwise OR with the same error code and still interpret which errors were raised. << Part 2 – Variables Part 4 – stdin, stdout,
How do I unexpand a file name? Player claims their wizard character knows everything (from books). 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