Check if same row exist in two files

check if same row exist in two files 

while read i;do egrep ^$i$ file2 && echo $i >> exist.out || echo $i >> non_exist.out; done < file1

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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