There are many ways how to get the current bandwidth usage on Linux. This is a very simple shell script that lists the network statistic every second: #!/bin/bash
if [ -z "$1" ]; then
       [ ... ]

There is a very nice script from Ricardo Garcia Gonzalez which allows you to download a YouTube video directly as a .flv file. go to http://bitbucket.org/rg3/youtube-dl/wiki/Home and download the [ ... ]