To run some Python program I use the following bash script:
python3 /MyProg.py 0>/dev/null 1>>output_log_file 2>error_log_file
However I can get information after the prog is terminated only. When program is running there are not any data in these files.
Can I override this behavior to get log data immediately? My OS is Raspbian.
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Answer
I suspect the program needs to flush stdout and stderr periodically, via
import sys sys.stdout.flush() sys.stderr.flush()