Commands by particleflux (2)

  • Benchmark a SQL query against MySQL Server. The example runs the query 10 times, and you get the average runtime in the output. To ensure that the query does not get cached, use `RESET QUERY CACHE;` on top in the query file. Show Sample Output


    1
    perf stat -r 10 sh -c "mysql > /dev/null < query.sql"
    particleflux · 2018-05-03 12:20:03 0
  • Pipe any JSON to jq, then count with the appropiate expression and use the | length on the array


    1
    echo '[1,2,3]' | jq '. | length'
    particleflux · 2018-05-03 06:34:05 0

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