Command Error Codes Dos
Contents |
stdin, stdout, stderr Part 5 – If/Then Conditionals Part 6 – Loops Part 7 – Functions Part 8 – Parsing Input Part 9 – Logging Part 10 –
Dos Command Prompt Codes
Advanced Tricks Today we’ll cover return codes as the right way to communicate dos command return code the outcome of your script’s execution to the world. Sadly, even skilled Windows programmers overlook the importance of return codes. dos command exit code 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 the script work
Dos Command Error Handling
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 command: IF %ERRORLEVEL% NEQ 0
Dos Error Codes List
( 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 gets the job done. Conditional Execution Using the Return Cod
File not found 03 Path not found 04 Too many open files (no handles left) 05 Access denied 06 Invalid handle 07 Memory control blocks destroyed 08 Insufficient memory dos beep codes 09 Invalid memory block address 0A Invalid environment 0B Invalid format 0C Invalid access
Unix Error Codes
mode (open mode is invalid) 0D Invalid data 0E Reserved 0F Invalid drive specified 10 Attempt to remove current directory 11 windows error codes Not same device 12 No more files 13 Attempt to write on a write-protected diskette 14 Unknown unit 15 Drive not ready 16 Unknown command 17 CRC error 18 Bad request structure length 19 Seek http://steve-jansen.github.io/guides/windows-batch-scripting/part-3-return-codes.html error 1A Unknown media type 1B Sector not found 1C Printer out of paper 1D Write fault 1E Read fault 1F General failure 20 Sharing violation 21 Lock violation 22 Invalid disk change 23 FCB unavailable 24 Sharing buffer overflow 25 Reserved 26 Unable to complete file operation (DOS 4.x) 27-31 Reserved 32 Network request not supported 33 Remote computer not listening 34 Duplicate name on network 35 Network name not http://stanislavs.org/helppc/dos_error_codes.html found 36 Network busy 37 Network device no longer exists 38 NetBIOS command limit exceeded 39 Network adapter error 3A Incorrect network response 3B Unexpected network error 3C Incompatible remote adapter 3D Print queue full 3E No space for print file 3F Print file deleted 40 Network name deleted 41 Access denied 42 Network device type incorrect 43 Network name not found 44 Network name limit exceeded 45 NetBIOS session limit exceeded 46 Temporarily paused 47 Network request not accepted 48 Print or disk redirection is paused 49-4F Reserved 50 File already exists 51 Reserved 52 Cannot make directory entry 53 Fail on INT 24 54 Too many redirections 55 Duplicate redirection 56 Invalid password 57 Invalid parameter 58 Network device fault 59 Function not supported by network (DOS 4.x) 5A Required system component not installed (DOS 4.x) DOS Error Code/Classes Error Classes 01 Out of resource, out of space, channel, etc 02 Temporary situation, not an error, ex: file lock 03 Authorization, permission denied 04 Internal, system detected internal error 05 Hardware failure, serious problem related to hardware 06 System failure, ex: invalid configuration 07 Application error, inconsistent request 08 Not found, file/item not found 09 Bad format, file/item in invalid format 0A Locked, file/item interlocked 0B Media failure,
and Start program / application Action events (67000, 67002, 67202, 67402) may end with errorlevels or exit codes, that indicate the termination http://www.febooti.com/products/automation-workshop/online-help/events/run-dos-cmd-command/exit-codes/ status of executed Command or Application. They can help in finding http://www.computerhope.com/forum/index.php?topic=65815.0 the particular reason of command's or application's termination. Although Automation Workshop shows codes in decimal format, they are also referred as hexadecimal or negative decimal values.Exit codeDetails0Program suseccfully completed.1Incorrect function. Indicates that Action has attempted to execute non-recognized command in Windows command prompt error codes cmd.exe.2The system cannot find the file specified. Indicates that the file can not be found in specified location.3The system cannot find the path specified. Indicates that the specified path can not be found.5Access is denied. Indicates that user has no access right to specified resource.9009
0x2331Program is not recognized as an internal or external command error codes command, operable program or batch file. Indicates that command, application name or path has been misspelled when configuring the Action.3221225477
0xC0000005
-1073741819Access violation.Indicates that the executed program has terminated abnormally or crashed.3221225495
0xC0000017
-1073741801Not enough virtual memory is available.Indicates that Windows has run out of memory.3221225786
0xC000013A
-1073741510The application terminated as a result of a CTRL+C. Indicates that the application has been terminated either by user's keyboard input CTRL+C or CTRL+Break or closing command prompt window.3221225794
0xC0000142
-1073741502The application failed to initialize properly. Indicates that the application has been launched on a Desktop to which current user has no access rights. Another possible cause is that either gdi32.dll or user32.dll has failed to initialize.3221226505
0xC0000409
-1073740791Stack buffer overflow / overrun. Error can indicate a bug in the executed software that causes stack overflow, leading to abnormal termination of the software.3221225725
0xC00000FD
-1073741571Stack overflow / exhaustion. Error can indicate a bug in the executed software that causes stack overflow, leading to abnormal termination of the software.3762507597
0xE0434F4D
-532459699Unhan
activation email? 1 Hour 1 Day 1 Week 1 Month Forever Login with username, password and session length Forum only search News: Home Help Login Register Computer Hope » Microsoft » Microsoft DOS » How to return success/failure from a batch file? « previous next » Print Pages: [1] Go Down Author Topic: How to return success/failure from a batch file? (Read 126228 times) 0 Members and 1 Guest are viewing this topic. greveszTopic StarterStarter How to return success/failure from a batch file? « on: September 09, 2008, 02:31:33 PM » Hello,I am new to the DOS world. 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 execution?Thanks in advance!Gabor Logged diablo416Hopeful Re: How to return success/failure from a batch file? « Reply #1 on: September 09, 2008, 03:25:36 PM » heres an example@echo offsetlocal enabledelayedexpansionping 127.0.0.1 if "%errorlevel%"=="0" cls &Echo Success.if "%errorlevel%"=="1" cls &Echo Failendlocal Logged greveszTopic StarterStarter Re: How to return success/failure from a batch file? « Reply #2 on: September 09, 2008, 04:20:08 PM » Thanks, but that's not exactly what I had in mind. Let me try to explain it in a different way:a.bat calls b.bat and when b.bat completes, a.bat continues with steps depending on whether b.bat succeeded or failed.a.bat:Code: [Select]rem some code here
call b.bat
if "%errorlevel%=="0" goto success
:failure
rem do something
goto end
:success
rem do something else
:endWhat would b.bat look like for a.bat to work?Thanks again!Gabor Logged fireballsApprentice Code:TerminalThanked: 3 Re: How to return success/failure from a batch file? « Reply #3 on: September 09, 2008, 04:23:57 PM » If one of b.bat's commands fails because of an error then it will set errorlevel to 1 and exit the batch program, returning to a.bat.What is wrong with the code you provided below?FB Logged Next time google it. SidewinderGuruThanked: 123 Experience: Familiar OS: Other Re: How to return success/failure from a batch file? « Reply #4 on: September 09, 2008, 06:12:06 PM » Quote from: fireballs on September 09, 2008, 04:23:57 PMIf one of b.bat's commands fails because of an error then it will set errorlevel to 1 and exit the batch program, returning to a.bat.Not quite. Not all MS commands fail with errorlevel 1. XCOPY, for instance can fail with errorlevels 1 to 5. This type of compare ("%errorlevel%=="0") becomes dubious