Backup repositories

Although it is possible to undelete a Github repository (if you are an onwer),
you might want to backup your repo just in case:
git clone https://github.com/repository_name.git

And to backup the associated wiki (if present):
git clone https://github.com/repository_name.git.wiki

Alternatively create a shell script to backup all your repos at once.
In case of the Galaxy repos of Naturalis:
Backup_Galaxy_repos.sh