You can use the virsh application to manage virtual machines. This utility is built around the libvirt management API and operates as an alternative to the xm tool or the graphical Virtual Machine Manager. Unprivileged users can employ this utility for read-only operations. If you plan on running xend/qemu, you should enable xend/qemu to run as a service. After modifying the respective configuration file, reboot the system, and xend/qemu will run as a service. You can use virsh to script vm work. Like the xm tool, you run virsh from the command line.

virsh connect <name>