One-Liners

Full System Updates on Ubuntu

apt-get update && env DEBIAN_FRONTEND=noninteractive apt-get dist-upgrade -y && apt-get autoremove --purge -y && apt-get autoclean && snap refresh

Update Ubuntu LXD Host & Containers (Needs to be saved to Script)

#!/usr/bin/env bash

# Update host system
env DEBIAN_FRONTEND=noninteractive apt-get update --allow-releaseinfo-change
env DEBIAN_FRONTEND=noninteractive apt-get dist-upgrade -y
env DEBIAN_FRONTEND=noninteractive apt-get autoremove --purge -y
env DEBIAN_FRONTEND=noninteractive apt-get autoclean
snap refresh

# Update LXD Containers
for i in $(lxc ls status=running -c nsn --format csv | grep RUNNING$ | cut -f1 -d,)csv); do
  lxc exec $i --env DEBIAN_FRONTEND=noninteractive -T -- apt-get update --allow-releaseinfo-change
  lxc exec $i -- env DEBIAN_FRONTEND=noninteractive -T -- apt-get dist-upgrade -y
  lxc exec $i --env DEBIAN_FRONTEND=noninteractive -T -- apt-get autoremove --purge -y
  lxc exec $i --env DEBIAN_FRONTEND=noninteractive -T -- apt-get autoclean
  lxc exec $i -T -- bash -c "hash snap refresh 2>/dev/null && snap refresh"
done

Write random data to disk

dd if=/dev/urandom of=/dev/sd bs=4096 status=progress