#!/bin/bash echo " In ------ Out" while true; do OLD_IN=$(awk '$0~"'eth0:'"{print $2}' /proc/net/dev) OLD_OUT=$(awk '$0~"'eth0:'"{print $10}' /proc/net/dev) ...
You need nothing, You have everything.
#!/bin/bash echo " In ------ Out" while true; do OLD_IN=$(awk '$0~"'eth0:'"{print $2}' /proc/net/dev) OLD_OUT=$(awk '$0~"'eth0:'"{print $10}' /proc/net/dev) ...