Why log file is not updating at first time execution of script?

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Mady J 2018-9-17

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https://ww2.mathworks.cn/matlabcentral/answers/419312-why-log-file-is-not-updating-at-first-time-execution-of-script

评论： Walter Roberson 2018-9-17

采纳的回答： Walter Roberson

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Hello,

I am creating log file after the execution some command but for first time only file is creating not containing any log:

   catch
        disp("Error using slbuild_private:Unable to check out the Simulink Coder license to generate code")
            diary('Error_log_file.txt');

In this case for the first time execution of script, is only creating 'Error_log_file.txt' and there is no log in it. But, when I am executing script second time and so on it's showing me log.

Is there any way to log command window data at 1st time of execution?

Thanks,

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Walter Roberson 2018-9-17

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https://ww2.mathworks.cn/matlabcentral/answers/419312-why-log-file-is-not-updating-at-first-time-execution-of-script#answer_337102

Invoke diary() before the disp()

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Mady J 2018-9-17

Hello Walter Roberson,

Thank you for reply,As per my understanding i think diary command first create file, if not exist -> In first execution. And from second time of execution command maintain the log on existing file.

Walter Roberson 2018-9-17

Yes, if the diary file already exists then diary() with the same file name will append to it. However, logging to the diary will start immediately after the first time diary is called for any given file name.

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