systemd-first-boot-script/scripts/skeleton

#!/bin/bash
# Licence : GPL v3
# Author: Laurent HUBERT
#
# Example file for first-boot-script
# Copy this file to a new file and add permission execution to the new file
# Example:
# # cp skeleton 02-myscript
# # chmod +x 02-myscript
#
# Example Section : Displaying a banner
cat <<EOF
##############################
# My Banner                  #
##############################
EOF
# Example Section : asking user to enter a value
read -p "Please enter a value: " answer

# Example Section: use the value only if not empty
if [ -n "$answer" ]
then
  echo Using $answer as user data
  # Do something here
  exit 0
else
  # Exit with non zero status
  exit 1
fi