Dos Error Status
Contents |
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more dos error 5 about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges dos error 64 Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each
Dos Error 4
other. Join them; it only takes a minute: Sign up easy way to see dos command return code up vote 21 down vote favorite 5 Sometimes I run a command in cmd such as: fc /b file1 file2
Dos Error Level
and would like to see the return code from fc. Is there a simple way to do this? windows cmd dos return-code share|improve this question asked Mar 26 '10 at 8:07 Warpin 3,48473764 add a comment| 1 Answer 1 active oldest votes up vote 42 down vote accepted echo %ERRORLEVEL% From TechNet, Command shell overview: "%ERRORLEVEL% ... Returns the error code of the most recently used command. A non zero value usually indicates an error." To test for dos error code 1 specific error levels in batch files, you may find this knowledgebase article useful. share|improve this answer answered Mar 26 '10 at 8:16 Andras Vass 9,4162341 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign up using Email and Password Post as a guest Name Email Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of service. Not the answer you're looking for? Browse other questions tagged windows cmd dos return-code or ask your own question. asked 6 years ago viewed 34425 times active 6 years ago Related 643How to pass command line parameters to a batch file?264Is there a command to refresh environment variables from the command prompt in Windows?6What is the Windows/cmd.exe equivalent of Linux/bash's $? — the program exit/return code?1327Is there an equivalent of 'which' on the Windows command line?467How do I get the application exit code from a Windows command line?1Windows batch file commands and variables1How can I communicate with Command Prompt (CMD) using C++?371How to run two commands in one line in Windows CMD?0DOS Batch Command Timer1“EXIT” in batch file cannot overwrite return code of previous commands Hot Network Questions Why aren't Muggles extinct? Where (or to whom) do sold items go? Reflection of "Yada yada hi dharmasya..." in Durga Sapta
stdin, stdout, stderr Part 5 – If/Then Conditionals Part 6 – Loops Part 7 – Functions Part 8 – Parsing Input Part 9 – Logging Part
Dos Error 53
10 – Advanced Tricks Today we’ll cover return codes as the right way dos error 2 to communicate the outcome of your script’s execution to the world. Sadly, even skilled Windows programmers overlook the importance of dos error handling return codes. Return Code Conventions By convention, command line execution should return zero when execution succeeds and non-zero when execution fails. Warning messages typically don’t effect the return code. What matters is did http://stackoverflow.com/questions/2521818/easy-way-to-see-dos-command-return-code the script work or not? Checking Return Codes In Your Script Commands The environmental variable %ERRORLEVEL% contains the return code of the last executed program or script. A very helpful feature is the built-in DOS commands like ECHO, IF, and SET will preserve the existing value of %ERRORLEVEL%. The conventional technique to check for a non-zero return code using the NEQ (Not-Equal-To) operator of the IF http://steve-jansen.github.io/guides/windows-batch-scripting/part-3-return-codes.html command: IF %ERRORLEVEL% NEQ 0 ( REM do something here to address the error ) Another common technique is: IF ERRORLEVEL 1 ( REM do something here to address the error ) The ERRORLEVEL 1 statement is true when the return code is any number equal to or greater than 1. However, I don’t use this technique because programs can return negative numbers as well as positive numbers. Most programs rarely document every possible return code, so I’d rather explicity check for non-zero with the NEQ 0 style than assuming return codes will be 1 or greater on error. You may also want to check for specific error codes. 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. 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 to figure out the best way to check the return code of the program or script I’m calling. Remember, this is duct tape programming. It isn’t always pretty, but, it get
Studio 2015 products Visual Studio Team Services Visual Studio Code Visual Studio Dev Essentials Office Office Word/Excel/PowerPoint Microsoft Graph Outlook OneDrive/Sharepoint Skype Services Store Cortana Bing https://msdn.microsoft.com/en-us/library/windows/desktop/ms681382(v=vs.85).aspx Application Insights Languages & platforms Xamarin ASP.NET C++ TypeScript .NET - http://www.robvanderwoude.com/errorlevel.php VB, C#, F# Server Windows Server SQL Server BizTalk Server SharePoint Dynamics Programs & communities Students Startups Forums MSDN Subscriber downloads Sign in Search Microsoft Search Windows Dev Center Windows Dev Center Explore What’s new for Windows 10 Intro to Universal Windows Platform Coding challenges Develop for dos error accessibility Build for enterprise Windows Store opportunities Docs Windows apps Get started Design and UI Develop API reference Publish Monetize Promote Games Get started UI design Develop Publish Desktop Get started Design Develop API reference Test and deploy Compatibility Windows IoT Microsoft Edge Windows Holographic Downloads Samples Support Why Windows Dashboard Explore What’s new for Windows 10 Intro to dos error 5 Universal Windows Platform Coding challenges Develop for accessibility Build for enterprise Windows Store opportunities Docs Windows apps Get started Design and UI Develop API reference Publish Monetize Promote Games Get started UI design Develop Publish Desktop Get started Design Develop API reference Test and deploy Compatibility Windows IoT Microsoft Edge Windows Holographic Downloads Samples Support Why Windows Dashboard Error Handling Error Handling Reference System Error Codes System Error Codes System Error Codes (0-499) System Error Codes (0-499) System Error Codes (0-499) System Error Codes (0-499) System Error Codes (500-999) System Error Codes (1000-1299) System Error Codes (1300-1699) System Error Codes (1700-3999) System Error Codes (4000-5999) System Error Codes (6000-8199) System Error Codes (8200-8999) System Error Codes (9000-11999) System Error Codes (12000-15999) TOC Collapse the table of content Expand the table of content This documentation is archived and is not being maintained. This documentation is archived and is not being maintained. System Error Codes (0-499) Note The information on this page is intended to be used by programmers so that the software they write can b
Challenges C# Getting Started Examples Development Software Books KiXtart Getting Started Examples Links Tools Books Perl Getting Started Examples Links Tools Books PowerShell Getting Started Examples Links Tools Books Regular Expressions Getting Started Expressions Examples Links Tools Books Rexx Getting Started Examples OS/2 LAN Server Links Tools Books VBScript & WSH Getting Started VBScript Techniques Examples HTA & WSC Examples Links Tools Books Challenges Technologies WMI Getting Started Examples Links Tools Books ADSI Getting Started Examples Links Tools Books Silent Installs General Windows Installer Specific Software Software Requirements Hardware Requirements Books Batch Files Windows Resource Kits KiXtart Perl PowerShell Regular Expressions Rexx VBScript & WSH C# WMI ADSI HTML, JavaScript & CSS Off-Topic Scripting Tools Batch Utilities Resource Kits Compilers Editors Code Generators Regular Expressions Automation Tools VBScript Add-Ons Visual Studio Printing Tools Inventory Tools Shell Extensions File Viewers Backup Security The making Of... 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... Contact Failed Mail Donate Errorlevels The correct name for errorlevels would be return codes. But since the DOS command to determine the return code is IF ERRORLEVEL, most people use the name errorlevel. Errorlevels are not a standard feature of every command. A certain errorlevel may mean anything the programmer wanted it to. Most programmers agree that an errorlevel 0 means the command executed successfully, and an errorlevel 1 or higher usually spells trouble. But there are many exceptions to this general rule. IF ERRORLEVEL construction has one strange feature, that can be used to our advantage: it returns TRUE if the return code was equal to or higher than the specified errorlevel. This means most of the time we only need to check IF ERRORLEVEL 1 ... and this will return TRUE for every non-zero return code. In Windows NT4/2000/XP this may sometimes fail, since some executables return negative numbers for errorlevels! However, this can be fixed by using the following code to check for non-zero return codes: IF %ERRORLEVEL% NEQ 0 ... Use the code above wherever you would have used IF ERRORLEVEL 1 ... in the "past". Thanks for Noe Parenteau for this tip. To determine t