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# Cmd Return Error

## Contents

Checking the exit status There are several ways you can get and respond to the exit status of a program. windows-xp batch share|improve this question asked Oct 1 '10 at 4:47 Misha Moroshko 1,67861728 1 Also asked on Stackoverflow: How do I get the application exit code from a Windows Before posting on our computer help forum, you must register. It is in form of boolean values, with 0 for success and 1 for failure. http://trinitylabsupply.com/batch-file/cmd-return-error-code.html

Find the "Recursive Size" of a List A word for the moment when you realise technology has outpaced you Image blending dependent on image column How do I get the last This will save more typing and promote laziness. # An error exit function function error_exit { echo "$1" 1>&2 exit 1 } # Using error_exit if cd$some_directory; then rm * up vote 180 down vote favorite 39 I have a batch file that's calling the same executable over and over with different parameters. devcomApprenticeThanked: 37 Re: How to return success/failure from a batch file? « Reply #8 on: September 10, 2008, 01:12:38 AM » you can use:Code: [Select]&& if success
|| if failexample:Code: [Select]set here

## Batch File Exit Command

This was presumably because there were programs that expressed different degrees of failure with higher and higher exit codes. 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

See "if /?". Related 15Exit batch file from subroutine0Program in batch file reading old version of newly altered file (XP)1How to determine the name of a file extracted from a zip archive via a The second use, ${1:-"Unknown Error"} means that if parameter 1 ($1) is undefined, substitute the string "Unknown Error" in its place. Batch File Check Errorlevel So i created a little bash script to take care of this.

Example @echo off my_nify_exe.exe if errorlevel 1 ( echo Failure Reason Given is %errorlevel% exit /b %errorlevel% ) Warning: If you set an environment variable name errorlevel, %errorlevel% will return that Batch File Exit Code Only then does rm get executed; otherwise an error message is output and the program exits with a code of 1, indicating that an error has occurred. WaitForSingleObject( pi.hProcess, INFINITE ); int result = -1; if(!GetExitCodeProcess(pi.hProcess,(LPDWORD)&result)) { printf("GetExitCodeProcess() failed (%d)\n", GetLastError() ); } else printf("The exit code for '%ws' is %d\n",(LPTSTR)(strCmd.GetString()), result ); // Close process and thread http://stackoverflow.com/questions/334879/how-do-i-get-the-application-exit-code-from-a-windows-command-line Could the atmosphere be compressed and put into bottles?

Move the echo and exit to an else branch. –Samuel Mar 9 '15 at 23:27 Good point. Exit /b Errorlevel The exit codes set by resource kit utilities are not always consistent, they can vary between machines with different Service packs/Resource kit updates applied. What if that process hasn't exited yet? If you file a change-of-address form for yourself, that doesn't affect packages sent to your neighbor.

## Batch File Exit Code

This will cause slow performance if the loop is (pointlessly) counting up to a large number. this page You can read more about parameter expansion in the bash man page under the topic "EXPANSIONS". Batch File Exit Command Education or employment: What is a post-doc? Batch File Exit Code 1 Some programs return certain non-zero codes for special types of success. –Euro Micelli Nov 13 '14 at 19:23 add a comment| Your Answer draft saved draft discarded Sign up or

batch-file share|improve this question edited Sep 19 '14 at 10:13 Nakilon 20k86389 asked Apr 9 '09 at 14:56 Josh Kodroff 10.3k2173127 1 What command shell will be running your script? Comments are closed. environment variable contains the exit status of the previous program. When a windowed application eventually exits, its exit status is lost. Batch File Return Value

Computer Hope Forum Main pageFree helpTipsDictionaryForumLinksContact Welcome, Guest. But you can't change directories by saying set CD=C:\Windows. variable at all. Does it work?

Is it a stochastic matrix? Batch Set Errorlevel CMD.exe allows you to set it but then from that point on the variable is mostly meaningless. In this lesson, we're going to look at handling errors during the execution of your scripts.

## up vote 54 down vote favorite 5 Inside a batch file on Windows, I use 7-zip like this: ...\right_path\7z a output_file_name.zip file_to_be_compressed How could I check the exit code of 7z

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 goto :EOF :error echo Failed with error #%errorlevel%. but you need to catch that in the .bat and re-raise it to app1... Batch File Exit Code 0 If quitting CMD.EXE, sets the process exit code with that number.yes there are instances where the errorlevel won't be 1 choice returns 254 if there's

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 share|improve this answer answered Apr 19 '13 at 5:07 Sam Jones 4741718 3 it could be even better if you returned the same error back to app1. So if you have two commands in the batch script and the first fails, the ERRORLEVEL will remain set even after the second command succeeds. It isn’t always pretty, but, it gets the job done.

Conditional Execution Using the Return Code There’s a super cool shorthand you can use to execute a second command based on the success or failure of a command. rem setlocal set dofoo=yes set i=0 :STARTLOOP if "%i%"=="17" goto EXITLOOP if "%ERRORLEVEL%"=="%n%" set dofoo=no set /a i = %i% + 1 goto STARTLOOP :EXITLOOP if "%dofoo%"=="yes" foo But as Andrew For example: Set ERRORLEVEL=1000 myprogram.exe Echo This is not the exit code: %ERRORLEVEL% Set ERRORLEVEL= myprogram.exe Echo This is the exit code: %ERRORLEVEL% Jay Bazuzi says: September 27, 2008 at 1:12 Head, Shoulders, Knees and Toes, Knees and Toes Why doesn't find . -delete delete current directory?

XCOPY, for instance can fail with errorlevels 1 to 5. Can my employer see what I do on the internet when I am connected to the company network? This becomes more important as your programs get more complex and you start having scripts launching other scripts, etc. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the

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 CloseHandle( pi.hProcess ); CloseHandle( pi.hThread ); return result; } share|improve this answer edited Aug 16 '11 at 12:44 svick 127k23199312 answered Jun 25 '10 at 17:05 dmihailescu 9441013 add a comment| It is very important to check the exit status of programs you call in your scripts. It's just a variable whose name happens to coincide with a command processor concept.

/* steve jansen */ // another day in paradise hacking code and more Windows Batch Scripting: Return Codes Mar 1st, 2013 | Comments Overview Part 1 – Getting Started Part 2 Maybe not goto in particular, but "try, do this on error" as Fowl mentioned. Why do Internet forums tend to prohibit responding to inactive threads? Note: Environment variables are a set of dynamic named values that can affect the way, running processes will behave on a computer.

Fired because your skills are too far above your coworkers Why does the '!!' shortcut fail to execute the previously run command? Click here it's easy and free. Environment variable %ERRORLEVEL% contains the latest errorlevel in the batch file,which is the latest error codes from the last command executed. If the exit status is anything other than zero, then the program failed in some way.

Head, Shoulders, Knees and Toes, Knees and Toes What happens if BB-8 rolls the wrong way? At age 25, is it still okay to wear braces to work? Examples Exit if a required file is missing @Echo Off If not exist MyimportantFile.txt Exit /b Echo If we get this far the file was found Set the errorlevel to 5 Why is engine displacement frequently a few CCs below an exact number?