This is a simple script for showing the bandwidth usage on all your network interfaces using netstat. It displays the total usage per interface and an approximation of the usage per day and month.
Uptime 2 days 22:49, Sun Aug 9 15:46:25 CEST 2009
Iface Rx Total Tx Total Rx/day Tx/day Rx/month Tx/month Rx+Tx/month
(GB) (GB) (MB) (MB) (GB) (GB) (GB)
lo0 .03 .03 10.86 10.86 .32 .32 .65
en1 2.48 .15 841.32 52.56 25.23 1.57 26.81
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