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Dos Shell Exit Code


Exit Codes With Special Meanings >

Table E-1. You’ll be auto redirected in 1 second. Peruse the documentation that comes with each program to see if exit codes are given. You can see in the example that the tests for these levels are done in descending order. http://sammcallister.com/batch-file/dos-shell-error-code.html

share|improve this answer answered Mar 26 '10 at 8:16 Andras Vass 9,4862341 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google The only way really is to do a for loop it seems to get the exact value. #5 24-Nov-2008, 19:56 Howard_L Senior Member Join Date: Apr 2007 Location: A very helpful feature is the built-in DOS commands like ECHO, IF, and SET will preserve the existing value of %ERRORLEVEL%. Can a supine verb have arguments?

Windows Batch File Return Code

Well-written command-line software will present a range of exit codes. Besides finding out just what happened during a command or program's execution, one may use these codes to allow a batch file to make decisions. With 256 choices, few commands or programs could ever fill up all the slots unless they became very involved.

Return Code Conventions By convention, command line execution should return zero when execution succeeds and non-zero when execution fails. When DOS or its software finishes a command operation, it usually generates a code upon exiting. That comes from the fact that when a command or program exits, it returns a value in the form of a number. Batch File Exit Code 0 Click here it's easy and free.

Each is one of 256 available values represented by a number from 0 (zero) through 255. `0' typically represents an operation that was completed with no errors. Dos Errorlevel XCOPY, for instance can fail with errorlevels 1 to 5. ExitCode   : Specifies a numeric number. /?   : Displays help at the command prompt. http://www.chebucto.ns.ca/~ak621/DOS/ExitCode.html 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

This would allot 50 valid codes, and make troubleshooting scripts more straightforward. [2] All user-defined exit codes in the accompanying examples to this document conform to this standard, except Exit /b Errorlevel So "IF ERRORLEVEL 2 GOTO PROBLEM" actually says if the exit code is level `2' or higher, the batch file is to branch to the "PROBLEM" section. CPP / C++ / C Code:

 #include  int main(int argc, char * argv[]) { if(argc > 1) return 1; Logged   " All generalizations are false, including this one. " Print Pages: [1] Go Up « previous next » Computer Hope » Microsoft » Microsoft DOS » How to 

Dos Errorlevel

Visual Studio Application Lifecycle Management Technical Reference for Team Foundation Team Foundation Version Control Command-Line Reference Team Foundation Version Control Command-Line Reference Command-Line Exit Codes Command-Line Exit Codes Command-Line Exit Codes Since exit code 1 signifies so many possible errors, it is not particularly useful in debugging.

There has been an attempt to systematize exit status numbers (see /usr/include/sysexits.h

EXIT without an ExitCode acts the same as goto:eof and will not alter the %ERRORLEVEL% You should never attempt to directly write to the %ERRORLEVEL% variable, (SET errorlevel...) instead use the check over here The first program/script must conform to the convention of returning 0 on success and non-0 on failure for this to work. Yes No Additional feedback? 1500 characters remaining Submit Skip this Thank you! They only generate one of these at a time but could eventually output all 256 numbers. Batch File Exit Code 1

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 to view what the last process returned as an exit code. Sadly, even skilled Windows programmers overlook the importance of return codes. his comment is here Can morse code be called steganography?

Are all Code Numbers Utilised? Batch File Function Return Value Error can indicate a bug in the executed software that causes stack overflow, leading to abnormal termination of the software.3221225725
-1073741571Stack overflow / exhaustion. Indicates that the application has been terminated either by user's keyboard input CTRL+C or CTRL+Break or closing command prompt window.3221225794
-1073741502The application failed to initialize properly.

Here are some websites with Exit Code information: -FreeDOS: Exit Codes -Planet 16-bits: Exit Codes -XXCOPY's Exit Codes Welcome guest.

In linux we can do this: Code: echo $? How can I do the same in a msdos console? It may be anticipated that the range of unallotted exit codes will be further restricted in the future. Errorlevel Codes We also pass a specific non-zero return code from the failed command to inform the caller of our script about the failure.

my-e-space Web Hosting Advertisements & Offers 0 20-Apr-2006 14:48 functions seems not to exit from a certain code block jaro C Programming Language 3 22-Mar-2006 00:08 Network Sites: GIDNetwork · GIDApp Despite the term "exit codes", "ERRORLEVEL" is used for the tests. Sure. weblink One might interpret the line "IF ERRORLEVEL 3 GOTO DATABASE" as "If Choice Number 3 is selected, go to the `DATABASE' label and follow the instructions below it." After ending the

Browse other questions tagged windows cmd dos return-code or ask your own question. Deep detail will not be gone into. It's because the batch file has already displayed choices in the form of a menu via the ECHO lines. Too bad DOS doesn’t support constant values like Unix/Linux shells.

This documentation is archived and is not being maintained. Remember, this is duct tape programming. Mencken fireballsApprentice Code:TerminalThanked: 3 Re: How to return success/failure from a batch file? « Reply #7 on: September 09, 2008, 06:57:18 PM » Quote from: Sidewinder on September 09, 2008, 06:51:56 Top of page Formatting legend Format Meaning Italic Information that the user must supply Bold Elements that the user must type exactly as shown Ellipsis (...) Parameter that can be repeated

The author of this document proposes restricting user-defined exit codes to the range 64 - 113 (in addition to 0, for success), to conform with the C/C++ standard. If quitting CMD.EXE, set the process exit code no. So why the difference? #4 24-Nov-2008, 19:37 dlp Member Join Date: May 2006 Posts: 157 Re: get a returned exit code in dos It appears that in older Learning resources Microsoft Virtual Academy Channel 9 MSDN Magazine Community Forums Blogs Codeplex Support Self support Programs BizSpark (for startups) Microsoft Imagine (for students) United States (English) Newsletter Privacy & cookies

Contact Us - GIDForums™ - Archive - Top vBulletin, Copyright © 2000 - 2016, Jelsoft Enterprises Ltd. I found this nice dos shell tutorial allenware.com/icsw/icsw020.htm which explains that a byte value (0-255) is returned and along with the loop method, that if you start a shell with the 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. Before posting on our computer help forum, you must register.

Top of page Remarks If you use /b outside of a batch script, it will exit Cmd.exe. If the word is not found, the batch file is directed to end. Ending a script with exit 127 would certainly cause confusion when troubleshooting (is the error code a "command not found" or a user-defined one?). if /B is specified, sets ERRORLEVEL that number.

If you exit Cmd.exe, Cmd.exe sets the process exit code with the specified ExitCode. How to explain lack of flatland? Since these codes can indicate what happened during a computer operation, they can be used in a batch file to tailor the direction of further procedures. Indicates that user has no access right to specified resource.9009
0x2331Program is not recognized as an internal or external command, operable program or batch file.