libvirt management interface. virsh uses the libvirt API to connect to a hypervisor and manipulate the configuration and state of virtual machines controlled by that hypervisor. If invoked with a command, it will execute the command and then exit. If invoked without a command, virsh enters a shell mode from which you can execute commands.
This manager will work with any hypervisor that has libvirt support. However, not all virsh commands are supported by all hypervisors. Nor will they work on all guests. Still, if a hypervisor can do something, you can generally use virsh to do it. Some hypervisors, including Xen, come with their own tools for managing virtual machines, but we still recommend you use virsh instead.
Most virsh commands expect a domain option. A domain refers to a virtual machine. You can use the virtual machine’s name or UUID. If the machine is running, it should also have an ID number within the hypervisor, and you can use this for the domain option as well. Use the list command to see names and IDs of domains managed by the hypervisor.
Connect to a hypervisor specified by uri.
Set the level of debugging information to be printed to standard output. Accepted values are 0–5. 0 disables debugging messages and is the default. 5 prints all debugging messages.
Print a brief description of options and commands.
Log debugging information ...