Bash script to create and download ESXi server configuration

#!/bin/bash
#########################################################################
#
# save-esxi-config.sh
#
# Generates and downloads the configuration of a given ESXi host
#
# Requires SSH support on the ESXi host
#
# The ESXi hostname must be resolvable; may work with IP addresses but
# has not been tested with them.
#
#########################################################################

# Name of ESXi host - edit to suit your system, or make into a command-line parameter
VM_HOST="felix.ncs"

# Directory where we download the configuration file, edit as needed
VM_DEST_DIR="/root/work"

# Generate the ESXi configuration file and extract the URL we will use to download it from
# the host. Note that we have to replace the '*' in the URL with the hostname

echo "Generating configuration file on ESXi host $VM_HOST"
VM_CONFIG_URL=$(ssh root@${VM_HOST} vim-cmd hostsvc/firmware/backup_config | awk '{print $7}' | sed -e "s/*/${VM_HOST}/")

# Form target filename
VM_DATE=$(date +%Y%m%d%H%M%S)
VM_CONFIG_FILE="$VM_DEST_DIR"/"$VM_HOST"-configBundle-"$VM_DATE".tgz

echo "Downloading $VM_CONFIG_URL to $VM_CONFIG_FILE"
wget --no-check-certificate --output-document=${VM_CONFIG_FILE} ${VM_CONFIG_URL}