1 
aria2c -P --split=19 --dir=$HOME \
2 
ftp://ftp{.us,.au,.af,.br,.bg,.cz,.de,.dk,.eg,.fi,.fr,.jp,.is,.in,.it,.kr,.ru,.uk,.tw,}\
3 
.kernel.org/pub/linux/kernel/v2.6/linux-$1.tar.bz2