I'm sure this is a dumb question, but my scripting knowledge is limited at best. Why does this (snipped from the FreeVPS bench):
wget -O /dev/null http://speedtest.wdc01.softlayer.com/downloads/test100.zip 2>&1 | awk '/\/dev\/null/ {speed=$3 $4} END {gsub(/\(|\)/,"",speed); print speed}'
give...