Word Processor ECHO 2. Exit
This is because "IF ERRORLEVEL" does not just mean if the exit code is `n' number, it actually means if it is `n' number or higher. Yes. Well-written command-line software will present a range of exit codes. Generally, the worse the error, the higher the number, or level, of the error. http://stackoverflow.com/questions/2521818/easy-way-to-see-dos-command-return-code
They even vary from command version to version. Not the answer you're looking for? Other, but less-used terms are "Return Values" or "Return Codes". In some cases, typing the program's executable name followed by " /?" (space, forward slash, question mark) may present exit codes along with its syntax and switch list.
If you file a change-of-address form for yourself, that doesn't affect packages sent to your neighbor. 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 But since the DOS command to determine the return code is IF ERRORLEVEL, most people use the name errorlevel. Dos Error Codes List This webpage gives a short discussion of these codes and ways in which they might be used.
An empire to last a hundred centuries Were slings used for throwing hand grenades? This type of compare ("%errorlevel%=="0") becomes dubious at best.B.bat can use the exit statement to pass a return code (errorlevel) back to a.bat.QuoteQuits the CMD.EXE program (command interpreter) or the current Do All DOS Commands Generate these Codes? http://stanislavs.org/helppc/dos_error_codes.html Bash uses the variable $?
Although most softwares give no exit codes or always one of `0' when they are terminated (ended) by the user, utilities often include a good range of exit codes. Dos Beep Codes Could someone please help with these questions:How do I return 0 for success ate the end of an MSDOS batch file?Similarly, how do I return 1 (or other values) representing erroneous current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. if … return-a-number 17 Maurits [MSFT] says: September 26, 2008 at 5:12 pm Actually reading the post, it appears CMD /C EXIT 17 works.
Thus, "IF ERRORLEVEL 2 GOTO PROBLEM" means that if the exit code is number `2' (at a level of `2'), the batch file is to branch to the "PROBLEM" section. http://superuser.com/questions/194662/how-to-check-the-exit-code-of-the-last-command-in-batch-file otherwise .bat eats the errorlevel and app1 never knows. Dos Error Code 9009 In the batch file , it is always a good practice to use environment variables instead of constant values. Dos Error Code 255 Natural construction How to handle spending money for extended trip to Europe without credit card?
When people brag about their abilities and belittle their opponents before a battle, competition, etc How could banks with multiple branches work in a world without quick communication? click site See your manual or on-screen documentation. The best generate a large array with enough specific circumstances covered to be very useful. setlocal set dofoo=no if ERRORLEVEL 17 set dofoo=yes if ERRORLEVEL 18 set dofoo=no if "%dofoo%"=="yes" foo rem TASK 2: using only rem if "%ERRORLEVEL%"=="%n%" rem simulate rem Dos Error Code 1
A very helpful feature is the built-in DOS commands like ECHO, IF, and SET will preserve the existing value of %ERRORLEVEL%. 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 Miscellaneous Tweaks 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... news 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
So if the software has codes for various problems that might be encountered during a conversion, one could have the batch file automatically re-run itself using different command-line switches. Unix Error Code SomeCommand.exe || EXIT /B 1 A simliar technique uses the implicit GOTO label called :EOF (End-Of-File). Look in your DOS manual or on-screen help, or do an Internet search.
It is used to take a user's selection and act upon it. 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 Not all MS commands fail with errorlevel 1. Windows Error Code The preceding exits codes were for the FreeDOS "FIND" command.
It is used to search for a given text string. The third means something happened and FIND was unable to finish or was unable to comply with the request. Use ‘exit /?' for help. More about the author But, as with FRED, that variable won't have any effect on the error level.
CMD.exe allows you to set it but then from that point on the variable is mostly meaningless. Marty says: September 27, 2008 at 11:34 am A god safety net is to reset ERRORLEVEL each time you use it, similar to the SetLAstError() function. windows cmd dos return-code share|improve this question asked Mar 26 '10 at 8:07 Warpin 3,48673764 add a comment| 1 Answer 1 active oldest votes up vote 42 down vote accepted echo Trying start /wait didn't work.
Old Forum Search | Forum Rules Copyright © 2013 Computer Hope All rights reserved. That comes from the fact that when a command or program exits, it returns a value in the form of a number. Here I am running windows 98se. 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?
Spreadsheet ECHO 3. As an example, if one uses a program that converts graphic formats and it incorporates exit codes, placing the conversion operation into a batch file would allow lines to be written Who knows why they made this value so difficult to get at this value. « Previous Thread | Next Thread » Thread Tools Show Printable Version Email this Page Search This was presumably because… The test for inequality is nice to have because the pseudo-environment-variable gives an easy test for equality: IF "%ERRORLEVEL%"=="%N%" Mathematically speaking, the two are equivalent, though; given
How to deal with a really persuasive character? if /B is specified, sets ERRORLEVEL that number. 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 Happened when checking %ERRORLEVEL% in a cmd file.