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I am trying to measure MySQL QPS (Queries per Second) for trending analysis.
mysqladmin -P3104 -rvi1 ex 2>&1 | grep Questions
I can’t get the above into a text file using the following:
mysqladmin -P3104 -rvi1 ex 2>&1 | grep Questions > out.txt
or
mysqladmin -P3104 -rvi1 ex 2>&1 | grep Questions | tee out.txt
I think ex might be interfering with the stdout/stderr redirection.
But I just need to capture the output into a file, I don’t need to see screen output.
2>&1 instead of 2&>1: