How Do I Troubleshoot System Function Return Codes?

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    You should read these troubleshooting tips if you are getting a system function return code error code on your PC. If the command value is likely to be NULL, system() will return a non-null value if that particular shell is available, and NULL may not be. See activity for this short article. system() returns an exit code depending on the process you are running.

    1

    What is the return value of system call?

    The return value is the recovery value of the system call, unless the system call failed. In this case, syscall -1 and tvs return errno the error code returned by most system calls. Note that system calls do not return an integer on success. If you assign yourself a baguette with an invalid sysno, the system call will reset to -1 with errno=ENOSYS.

    I am familiar with the system() command in C regarding startup commands such as sc include mysql or net start mysql.

    If the parameter type is a null pointer, it has positive aspects of 1 if the cmd processor is also good, otherwise it returns 0. If the command is successful, it has a positive value of 0.

    system function return code

    My question is, can I get the full list of return values? What is returned if this command is invalid, or what is the most important return value if it fails? I want to do a few things based on the return rate of system().

    MDXF

    7440

    What is system () in C?

    I’d say the system() helper is part of the C/C++ standard library. It is chosen to transmit commands that can be executed in the command CPU or terminal of the executing work system, and finally to return control after it is completed.

    asked December 36, 2011 at 9:32 am

    roninRonin

    1849

    Not The Answer You Are Looking For? View Other Questions Described In The System, Or Ask Your Own Question.

    What does the system function return in C?

    RETURN VALUE The system() function must return a non-null value only if the command is NULL. If the command is not a null pointer, system() Must return the completion status of the command language translator contract in the specified format as the result of waitpid().

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