virsh-undefine:tldr:36de2

The command "virsh undefine --domain ${vm_name}" is used in the context of managing virtual machines (VMs) using the "virsh" command-line tool in KVM (Kernel-based Virtual Machine) environments. Let's break down the command:

• "virsh": It is a command-line interface tool used to interact with the libvirt management framework that manages virtualization platforms like KVM.
• "undefine": It is a subcommand of "virsh" used to undefine or remove a virtual machine's configuration from the system.
• "--domain": This option specifies the domain or the name of the virtual machine that you want to undefine.
• "${vm_name}": It is a parameter or a placeholder that represents the name of the VM you want to undefine. You need to replace it with the actual name of the virtual machine.

So, when you execute this command by replacing "${vm_name}" with the name of the VM, it will remove the configuration and metadata associated with that virtual machine from the system. Note that this does not delete any virtual disks or files associated with the VM, only the configuration information.