PVE destroys virtual machines in batches

/ Frytea | 宋天轮

Original link: https://blog.frytea.com/archives/771/

75

All QEMU virtual machines can be deleted at once with the following command:

serial

 qm list | awk 'NR>1 {print $1}' | xargs -I {} qm destroy {}

explain:

  • The qm list command gets a list of all virtual machines.
  • awk 'NR>1 {print $1}' command skips the first line (header) and extracts the VMID column.
  • xargs -I {} qm destroy {} command deletes each virtual machine by passing each VMID as an argument to the qm destroy command.

NOTE: This command deletes all virtual machines, please ensure proper backup and confirmation is done before executing.

parallel

You can delete all QEMU virtual machines in parallel with the following command:

 qm list | awk 'NR>1 {print $1}' | xargs -P 0 -I {} sh -c 'qm destroy {} || true'

explain:

  • The qm list command gets a list of all virtual machines.
  • awk 'NR>1 {print $1}' command skips the first line (header) and extracts the VMID column.
  • xargs -P 0 -I {} sh -c 'qm destroy {} || true' command deletes each VM by passing each VMID as an argument to the qm destroy command. -P 0 option tells xargs to run as many processes as possible in parallel. || true ensures that the exit status is 0 if qm destroy command fails, so other delete operations still proceed.

NOTE: This command deletes all virtual machines, please ensure proper backup and confirmation is done before executing.

This article is transferred from: https://blog.frytea.com/archives/771/
This site is only for collection, and the copyright belongs to the original author.