Re: [libvirt-users] Updating Multiple VM Guests?

--- On Wed, 11/10/10, Laine Stump<laine(a)laine.org> wrote: > From: Laine Stump<laine(a)laine.org> > Subject: Re: [libvirt-users] Updating Multiple VM Guests? > To: libvirt-users(a)redhat.com > Date: Wednesday, November 10, 2010, 12:41 PM > On 11/10/2010 11:59 AM, Kenneth > Stailey wrote: >> Hi, >> >> The libvirt.org FAQ says that "virsh edit" is the > recommended way of updating the libvirt xml. >> If a change has to be made to many VMs "virsh edit" is > tedious, time-consuming and likely to be prone to careless > errors. >> Is there a command line approach to updating multiple > VMs? > > How about: > > for g in guest1 guest2 guest3 guest4; do > virsh dumpxml --inactive $g >> /tmp/g.xml > # do whatever sed/etc commands you > want here > virsh define /tmp/g.xml > done > > (or something like that, anyway :-) The "sed, etc." is a mistake since XML does not have guaranteed format. I suppose XMLStarlet could be used. http://xmlstar.sourceforge.net/