build / install / backup / retrieve GNOME Shell Extensions

Backup GNOME Shell Extensions / 备份
$ wget https://github.com/yomun/gnome-shell/raw/master/backup-gnome-extension.sh
$ bash backup-gnome-extension.sh

Retrieve GNOME Shell Extensions / 恢复
$ wget https://github.com/yomun/gnome-shell/raw/master/retrieve-gnome-extension.sh
$ bash retrieve-gnome-extension.sh