"Oneliner" to backup your public github repos.

backup-github.sh

#!/bin/sh

# Run from a directory in which you'd like to shove a _lot_ of bare repositories.
curl -s http://github.com/api/v2/yaml/repos/show/mikewest | grep ':url:' | awk '{ print $2 }' | sed -e 's#http://#git://#' -e 's#$#.git#' | xargs -L 1 git clone --bare

aolcm: You're right. You can do everything with a single sed command. :)

I find it pretty hard to follow, though... using smaller steps makes the whole process a bit clearer to me; I know exactly what each command is doing and can follow the interactions. I think your solution, though surely functional, is simply less readable.