/usr/local/bin/vboxhostname

vboxhostname

#!/bin/bash
# If you set the something stupid that's not a valid hostname, then it's your
# own fault. :P
set -euo pipefail

echo 'Ran vboxhostname' > /tmp/x
echo '----------------' >> /tmp/x
VBoxControl guestproperty get hostname 2>&1 >> /tmp/x
vboxhostname=$(VBoxControl guestproperty get hostname | grep Value | awk '{ print $2 }')
echo "Got $vboxhostname" >> /tmp/x

if [[ -z $vboxhostname ]]; then
  echo "ERROR: Set hostname via 'vboxmanage guestproperty set <vmname> hostname <hostname>'"
  exit 1
fi

# append as second line
sed -i "1 a\
127.0.1.1       $vboxhostname" /etc/hosts

echo $vboxhostname > /etc/hostname
hostname -F /etc/hostname