Date validation with regex

Date validation with regex – dd/mm/yyyy

(0[1-9]|[12][0-9]|3[01])/(0[1-9]|1[012])/(19|20)\d{2,2}

Monitoring response time with curl

   curl -s -o /dev/null -w "Conecction: %{time_connect}s | Start transfer: %{time_starttransfer}s | Total time: %{time_total}s\n" ...

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