Poor-man Bash hack to backup all of a user's GitHub repositories.

github-backup.sh

#!/bin/sh

username=

curl -s https://api.github.com/users/$username/repos | jq -r '.[].git_url' | while read git_url
do
        repo_name=$(basename $git_url .git)
        echo Backing up $repo_name
        git clone -q $git_url 2> /dev/null || (
                cd $repo_name
                git pull -q
        )
        tar cfz ${repo_name}-$(date +%Y%m%d).tar.gz $repo_name
done