extract average time from ping -c

One way is to just add a cut to what you have there.

ping -c 4 www.stackoverflow.com | tail -1| awk '{print $4}' | cut -d '/' -f 2

linux bash awk ping

ping -c 4 www.stackoverflow.com | tail -1| awk -F '/' '{print $5}' would work fine.

"-F" option is used to specify the field separator.

linux bash awk ping

This might work for you:

ping -c 4 www.stackoverflow.com | sed '$!d;s|.*/\([0-9.]*\)/.*|\1|'

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