As a rule of thumb: do not use this technique in command lines that also contain other redirections. (4) Redirecting both standard output and standard error to the same file CD-ROM receiving power but does not work. Is it worth buying real estate just to safely invest money? Browse other questions tagged batch-file or ask your own question.
You'd want to look at a more powerful scripting language. Invalid parameter Typed a command correctly but specified the incorrect parameter, such as format /z. ENDLOCAL set SOME_EXTERNAL_VARIABLE=1 GOTO :EOF :USAGE echo Please provide a command line parameter. You may need to go into your config.sys and increase the STACKS=0,0 line. read the full info here
The drive letter you're typing does not exist on the computer. Invalid drive specification The drive letter you're typing does not exist on the computer. If quitting CMD.EXE, sets the process exit code with that number. [Brought to my attention by Maor Conforti. I'm a software developer loving life in Charlotte, NC, an (ISC)2 CSSLP and an avid fan of Crossfit.
This will only work in OS/2 and NT, not in MS-DOS. Too bad DOS doesn’t support constant values like Unix/Linux shells. In Windows NT4 (and 2000?) this won't work, since the SET command itself will set an errorlevel (usually 0)! (As I learned from Charles Long, in XP the SET command no Dos Error 64 Windows NT4 and later: In NT4 use either COLOR00 or VERIFYOTHER2>NUL to set an errorlevel 1.
Complete example: copy N files from location A to the B and after each step check for error, if error occured print 'Error' otherwise 'Sucess'. For example, if you're surrounding your path in quotes and leave out the ending quotes. This error often occurs when you're typing a directory in the MS-DOS or the Windows command line that has spaces in it. check here SET /A ERROR_HELP_SCREEN=1 SET /A ERROR_FILE_NOT_FOUND=2 SET /A ERROR_FILE_READ_ONLY=4 SET /A ERROR_UNKNOWN=8 This gives me the flexibility to bitwise OR multiple error numbers together if I want to record numerous problems
SomeCommand.exe || GOTO :EOF Tips and Tricks for Return Codes I recommend sticking to zero for success and return codes that are positive values for DOS batch files. Dos Error 4 Use "CALL FOO.BAT" instead of just "FOO.BAT" when calling subscripts. Bad command or file name Caused by a misspelling or error when typing a command or when the command attempting to be used is not a valid command for your version How to find position where a sequence drops off to zero How do R and Python complement each other in data science?
Sadly, even skilled Windows programmers overlook the importance of return codes. SomeCommand.exe || EXIT /B 1 A simliar technique uses the implicit GOTO label called :EOF (End-Of-File). Dos Output Error To File Invalid Switch The wrong slash was typed, for example: "cd/" instead of "cd\." Non-System disk or disk error Invalid or Non System Disk error. Dos Batch File Error Handling 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...
asked 7 years ago viewed 98754 times active 10 months ago Get the weekly newsletter! batch-file share|improve this question edited Apr 29 '14 at 11:28 John Saunders 138k20175321 asked Jul 22 '09 at 9:15 bplus 2,87494574 add a comment| 5 Answers 5 active oldest votes up 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. EXIT[/B][exitCode] /B Specifies to exit the current batch script instead of CMD.EXE. Dos Error 5
Guides Guide to Windows Batch Scripting Recent Posts Parsing Jenkins secrets in a shell script Jenkins Job to export Rackspace Cloud DNS Domain As BIND Zone Files Troubleshooting GitHub WebHooks SSL It isn’t always pretty, but, it gets the job done. share|improve this answer edited Apr 29 '14 at 11:24 answered Jun 13 '13 at 11:27 dbenham 77.9k11114179 Would u mind to provide a simple example with copy or del Most programmers agree that an errorlevel 0 means the command executed successfully, and an errorlevel 1 or higher usually spells trouble.
In DOS for the rest of us, we can use FOR loops to determine the errorlevel: @ECHO OFF REM Reset variables FOR %%A IN (1 10 100) DO SET ERR%%A= REM Dos Error Level Unable to read floppy diskette. Consider using SETLOCAL and ENDLOCAL within your script to prevent temporary environment variables from carrying through to outer shells.
Unfortunately, I don't do it quite frequently enough to remember all the crazy syntax of DOS commands. Change Windows 7 default logon screen background ► September (3) ► June (1) ► May (2) ► February (2) ► January (3) ► 2010 (8) ► December (1) ► November (1) How to change drives in MS-DOS and Windows command line. Dos Error Code 1 Redirection usually results in temporary files.
It will corrupt any further use of %ERRORLEVEL% syntax by fixing it at a value. File not found The file you attempted to list, copy, or edit does not exist in the directory. Sometimes the lines can be padded with spaces to align all redirection signs and make the batch file more readable. How to change or rename a file, folder, or directory.
See the attrib command for further information and options on this command. Linked 0 Error handling in batch script 14 Foolproof way to check for nonzero (error) return code in windows batch file 0 capturing error message from echo in cmd prompt 1 Verify you are in the correct directory and that the file exists in that directory by using the dir command. This may seem quite a challenge.
When typing a directory with spaces in MS-DOS make sure to surround the path with quotes. Windows 2000 and later: In Windows 2000 & XP a new /B switch has been added to the EXIT command, enabling the batch file to quit with a return code: EXIT A certain errorlevel may mean anything the programmer wanted it to. But there are many exceptions to this general rule.
Verify you're typing the file you want to rename correctly.