Home > Batch File > Bat File Error Level

Bat File Error Level


Hi, I'm Steve. IF ERRORLEVEL 1 will return TRUE when the ERRORLEVEL is greater than or equal to 1 IF NOT ERRORLEVEL 1 means if ERRORLEVEL is less than 1 (Zero or negative). It's a fallback step, in the same way that your neighbor is a fallback delivery location if you aren't home. Why not just have an environment variable called %ERRORLEVEL% which is automatically updated to the error level whenever a command finishes running? http://waspsoft.com/batch-file/batch-file-error-level.html

The customer runs the program from a scheduled task. I thought my ponderous prose style and choleric disposition would give me away to all, but it seems I have been lucky. File syntax IF [NOT] EXIST filename command IF [NOT] EXIST filename (command) ELSE (command) String syntax IF [/I] [NOT] item1==item2 command IF [/I] item1 compare-op item2 command IF [/I] item1 compare-op Then there's no possibility of confusion, although anything which tries to use that environment variable will not work.

Errorlevel Neq

Jumping to EOF in this way will exit your current script with the return code of 1. So you can include the error level in a log file: ECHO error level is %ERRORLEVEL%>logfile

So you can perform other types of tests against the error level, for example, to Conditional execution syntax (AND / OR) SET - Display or Edit environment variables ECHO - Display message on screen EXIT - Set a specific ERRORLEVEL IFMEMBER - group member (Resource kit) asked 5 years ago viewed 45597 times active 2 years ago Visit Chat Linked 1 run a batch file for every alive machine in a /24 network 0 How to skip

For example, the diff program has three exit codes: 0 means the files are the same; 1 means the files are different; 2 means that something terrible happened. How to make different social classes look quite different? Thanks for Noe Parenteau for this tip. Batch File Ping Errorlevel In Windows NT4/2000/XP this may sometimes fail, since some executables return negative numbers for errorlevels!

tale103108 Guest DOS IF %ERRORLEVEL% construct « on: September 02, 2009, 07:40:26 AM » Ok, I need to test the successful execution of a program within a DOS batch file, print If Errorlevel Trout is fishing for:No it isn't. Trout is fishing for:EXITQuits the CMD.EXE program (command interpreter) or the current batch script.EXIT [ /B ] [ exitCode ]/B Specifies to exit the current batch script instead of CMD.EXE.If executed You should never attempt to write to the %ERRORLEVEL% variable because the value you set will create a user variable named ERRORLEVEL which then takes precedence over the internal pseudo variable

But I'm digressing. Batch File Errorlevel Not Working 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 Not the answer you're looking for? Is the empty set homeomorphic to itself?

If Errorlevel

in the "past". Don't swim in my river, or you'll drown.Code: [Select]program.exe # program that is executed and status to be checked
ECHO "I failed"
EXIT Errorlevel Neq To execute a follow-on command after sucess, we use the && operator: SomeCommand.exe && ECHO SomeCommand.exe succeeded! If Errorlevel 0 If Not Errorlevel 1 This is an important difference because if you compare numbers as strings it can lead to unexpected results: "2" will be greater than "19" and "026" will be greater than "26".

I'm a software developer loving life in Charlotte, NC, an (ISC)2 CSSLP and an avid fan of Crossfit. http://waspsoft.com/batch-file/batch-file-catch-error-level.html Question What is a foolproof (i.e. Have you tried 1 ( with a space? Some utilities will return negative numbers as an exit code. Batch File Set Errorlevel

what is the difference between \twocolumn and \documentclass[twocolumn]{book} Unexpected parent process id in output Dennis numbers 2.0 Is there a way to make a metal sword resistant to lava? 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 Would anyone at Microsoft care to make the official CMD expansion into a useful function? his comment is here contains True if last operation succeeded and False otherwise.

Can Customs make me go back to return my electronic equipment or is it a scam? Batch File Errorlevel Return IF ERRORLEVEL n statements should be read as IF Errorlevel >= number i.e. But since the DOS command to determine the return code is IF ERRORLEVEL, most people use the name errorlevel.

If executed from outside a batch script, it will quit CMD.EXE.

Maybe cmd.exe builtin set could set its exit value to the value passed in instead of setting the environment variable when the variable being set in is named ERRORLEVEL? What if that process hasn't exited yet? If /B is specified, sets ERRORLEVEL that number. Batch File Errorlevel Always 0 And, no, I'm not Steve Jansen the British jazz drummer, though that does sound like a sweet career.

Or is it necessary to write an exe // return-a-number.exe int main (int argc, LPCSTR argv[]) { return argc ? However, I don’t use this technique because programs can return negative numbers as well as positive numbers. 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 weblink It is possible (though not a good idea) to create a string variable called %ERRORLEVEL% (user variable) if present such a variable will prevent the real ERRORLEVEL (a system variable) from

And by the way use either if errorlevel 1 (... That would be a neat trick. (I would guess the number of programs that would be broken by the change would be quite near zero.) [I would not be surprised if There are also programs that use an exit code of zero to mean success and anything else to mean failure. In addition to this internal state, you can, if you EXIT[/B][exitCode] /B Specifies to exit the current batch script instead of CMD.EXE.

The right way to ask for success is: if not errorlevel 1 echo success... –Aacini Jul 26 '11 at 1:31 @Aacini: well yes, but I'm checking 1 before 0, Where am I going wrong here? In it, you'll get: The week's top questions and answers Important community announcements Questions that need answers see an example newsletter By subscribing, you agree to the privacy policy and terms Logged Salmon TroutGeniusThanked: 837 Computer: Specs Experience: Experienced OS: Other Re: DOS IF %ERRORLEVEL% construct « Reply #8 on: September 02, 2009, 10:15:40 AM » Quote from: billrich on September 02,

exitCode Specifies a numeric number.