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I am trying to run a batch file with start /high and still get the return/exit code, i.e. %ERRORLEVEL%. The problem seems to be that command START does not return the exit code that the batch file returns.
We have a simple batch file for testing named BatFileThatReturnsOne.bat.
The contents of BatFileThatReturnsOne.bat are
EXIT /B 1
We are calling this as such:
start /high /wait BatFileThatReturnsOne.bat
But no matter what the batch file returns, the execution of start never has a %ERRORLEVEL% of anything other than 0 (zero).
This is all actually called by cfn-init in CloudFormation, but that is probably not relevant because we can reproduce it from a command line window.
The actual call is:
cmd.exe /C start /high /wait BatFileThatReturnsOne.bat
How do I get start to set the %ERRORLEVEL% to something other than 0 (zero)?
725
To display the exit code for the last command you ran on the command line, use the following command: $ echo $?
To prevent echoing a particular command in a batch file, insert an @ sign in front of the command. To prevent echoing all commands in a batch file, include the echo off command at the beginning of the file.
To check the exit code we can simply print the $? special variable in bash. This variable will print the exit code of the last run command.
/r - iterate through the folder and all subfolders, i.e. recursively. %%I - placeholder for a path/filename. The above command simply lists all files in the current folder and all subfolders. Follow this answer to receive notifications.
directly from a cmd window or a batch file you can use
start /high /wait cmd /c BatFileThatReturnsOne.bat
but if you need to start the cmd instance to execute the start command that launchs the batch file then you can use
cmd /v /e /c" start /high /wait cmd /c launched.cmd & exit ^!errorlevel^!"
Just change EXIT /B 1 by EXIT 1.
As explained in the Table 4 given in this answer about START /WAIT bat command:
When the started Batch file ends, set ERRORLEVEL = value from 'EXIT number' commmand.
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