simple_boot_setup.sh

#!/bin/bash
#
# /boot/simple_boot_setup.sh
#
# This script is executed by /etc/init.d/simple_boot_setup
#
# By default this script does nothing, and removes itself after the
# first run when called by /etc/init.d/simple_boot_setup

# This setting will cause this script to exit if there are any errors.
set -ue

disable_after_first_run(){
  if [[ $CALLED_BY == init && $0 == /boot/simple_boot_setup.sh ]]; then
    mv $0 $0.removed_after_first_run
    update-rc.d simple_boot_setup remove
  fi
}

####
##   This is where you put your setup code.
####

    ## ## Here are some examples of things you might do...
    ##
    ## ## Remove unneeded packages
    ## apt-get -y remove --purge xserver-common x11-common gnome-icon-theme gnome-themes-standard penguinspuzzle
    ## apt-get -y remove --purge desktop-base desktop-file-utils hicolor-icon-theme raspberrypi-artwork omxplayer
    ## apt-get -y autoremove
    ##
    ## ## Install a package that will automatically mount & unmount USB drives
    ## apt-get install usbmount
    ##
    ## ## Setup wifi so you can connect to a secured network without a keyboard & monitor!
    ## cp /etc/wpa_supplicant/wpa_supplicant.conf /etc/wpa_supplicant/wpa_supplicant.conf.bak
    ## wpa_passphrase "MyWiFi" "MyPassphrase" | tee -a /etc/wpa_supplicant/wpa_supplicant.conf
    ## sed -i.bak 's/iface wlan0 inet manual/iface wlan0 inet dhcp/; s/wpa-roam/wpa-conf/; $i auto wlan0 eth0' /etc/network/interfaces
    ##
    ## ## Add your SSH pub key
    ## (umask 077; mkdir -p ~/.ssh; touch ~/.ssh/authorized_keys)
    ## chown -R $(id -u pi):$(id -g pi) ~/.ssh
    ## curl -sL https://raw.github.com/RichardBronosky/dotfiles/master/.ssh/authorized_keys >> ~/.ssh/authorized_keys
    ##
    ## ## fake completing the raspi-config
    ## sed '/do_finish()/,/^$/!d' /usr/bin/raspi-config | sed -e '1i ASK_TO_REBOOT=0;' -e '$a do_finish' | bash


# If you want this script to remain and run at ever boot comment out the next line.
disable_after_first_run