Re: [libvirt-users] how to know one domain is defined or not

2013/1/17 Michal Privoznik <mprivozn@redhat.com>

On 17.01.2013 10:37, lei yang wrote:

...

Hi experts

I want to write a script to determine one domain named "vm1" is defined or not, if defined, I will undefine it.

The question is how could I know it define or not ?

either you can 'virsh list --persistent --all | grep $vm' or you can try 'virsh undefine $vm' which will throw an error if there's no such domain as $vm.

I think ‘virsh domstate $vm’ is better than 'list --all | grep $vm'