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Update initialize-pi.sh
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Steve Magnuson
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195
initialize-pi.sh
195
initialize-pi.sh
@ -1,188 +1,23 @@
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#!/bin/bash
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#================================================================
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# HEADER
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#================================================================
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#% SYNOPSIS
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#+ ${SCRIPT_NAME} [-hv]
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#%
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#% DESCRIPTION
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#% This script generates new VNC server and SSH server and client keys and restores
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#% certain ham radio application configurations to default values at boot time
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#% if a file named DO_NOT_DELETE_THIS_FILE file does not exist in the user's
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#% home directory.
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#%
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#% Run this script whenever the Pi boots by adding a crontab entry, like this:
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#%
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#% 1) Run crontab -e
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#% 2) Add the following line to the end:
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#%
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#% @reboot sleep 5 && /usr/local/bin/initialize-pi.sh
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#%
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#% 3) Save and exit the crontab editor
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#%
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#% OPTIONS
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#% -h, --help Print this help
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#% -v, --version Print script information
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#%
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#================================================================
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#- IMPLEMENTATION
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#- version ${SCRIPT_NAME} 1.16.3
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#- author Steve Magnuson, AG7GN
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#- license CC-BY-SA Creative Commons License
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#- script_id 0
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#-
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#================================================================
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# HISTORY
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# 20181220 : Steve Magnuson : Script creation
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# 20200204 : Steve Magnuson : Added script template
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#
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#================================================================
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# DEBUG OPTION
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# set -n # Uncomment to check your syntax, without execution.
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# set -x # Uncomment to debug this shell script
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VERSION="1.15.2"
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#
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# Script to generate new VNC server and SSH server keys at boot time if a certain
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# file does not exist. Run this script whenever the Pi boots by adding a crontab
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# entry, like this:
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#
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# 1) Run crontab -e
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# 2) Add the following line to the end:
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#
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# @reboot sleep 5 && /usr/local/bin/initialize-pi.sh
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#
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# 3) Save and exit the crontab editor
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#
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#================================================================
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# END_OF_HEADER
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#================================================================
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SYNTAX=false
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DEBUG=false
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#============================
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# FUNCTIONS
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#============================
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function TrapCleanup() {
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[[ -d "${TMPDIR}" ]] && rm -rf "${TMPDIR}/"
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exit 0
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}
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function SafeExit() {
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# Delete temp files, if any
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[[ -d "${TMPDIR}" ]] && rm -rf "${TMPDIR}/"
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trap - INT TERM EXIT
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exit
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}
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function ScriptInfo() {
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HEAD_FILTER="^#-"
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[[ "$1" = "usage" ]] && HEAD_FILTER="^#+"
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[[ "$1" = "full" ]] && HEAD_FILTER="^#[%+]"
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[[ "$1" = "version" ]] && HEAD_FILTER="^#-"
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head -${SCRIPT_HEADSIZE:-99} ${0} | grep -e "${HEAD_FILTER}" | \
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sed -e "s/${HEAD_FILTER}//g" \
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-e "s/\${SCRIPT_NAME}/${SCRIPT_NAME}/g" \
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-e "s/\${SPEED}/${SPEED}/g" \
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-e "s/\${DEFAULT_PORTSTRING}/${DEFAULT_PORTSTRING}/g"
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}
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function Usage() {
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printf "Usage: "
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ScriptInfo usage
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exit
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}
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function Die () {
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echo "${*}"
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SafeExit
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}
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#============================
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# FILES AND VARIABLES
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#============================
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#== general variables ==#
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SCRIPT_NAME="$(basename ${0})" # scriptname without path
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SCRIPT_DIR="$( cd $(dirname "$0") && pwd )" # script directory
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SCRIPT_FULLPATH="${SCRIPT_DIR}/${SCRIPT_NAME}"
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SCRIPT_ID="$(ScriptInfo | grep script_id | tr -s ' ' | cut -d' ' -f3)"
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SCRIPT_HEADSIZE=$(grep -sn "^# END_OF_HEADER" ${0} | head -1 | cut -f1 -d:)
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VERSION="$(ScriptInfo version | grep version | tr -s ' ' | cut -d' ' -f 4)"
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DIR="$HOME"
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INIT_DONE_FILE="$DIR/DO_NOT_DELETE_THIS_FILE"
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#============================
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# PARSE OPTIONS WITH GETOPTS
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#============================
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#== set short options ==#
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SCRIPT_OPTS=':hv-:'
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#== set long options associated with short one ==#
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typeset -A ARRAY_OPTS
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ARRAY_OPTS=(
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[help]=h
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[version]=v
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)
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# Parse options
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while getopts ${SCRIPT_OPTS} OPTION ; do
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# Translate long options to short
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if [[ "x$OPTION" == "x-" ]]; then
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LONG_OPTION=$OPTARG
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LONG_OPTARG=$(echo $LONG_OPTION | grep "=" | cut -d'=' -f2)
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LONG_OPTIND=-1
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[[ "x$LONG_OPTARG" = "x" ]] && LONG_OPTIND=$OPTIND || LONG_OPTION=$(echo $OPTARG | cut -d'=' -f1)
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[[ $LONG_OPTIND -ne -1 ]] && eval LONG_OPTARG="\$$LONG_OPTIND"
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OPTION=${ARRAY_OPTS[$LONG_OPTION]}
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[[ "x$OPTION" = "x" ]] && OPTION="?" OPTARG="-$LONG_OPTION"
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if [[ $( echo "${SCRIPT_OPTS}" | grep -c "${OPTION}:" ) -eq 1 ]]; then
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if [[ "x${LONG_OPTARG}" = "x" ]] || [[ "${LONG_OPTARG}" = -* ]]; then
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OPTION=":" OPTARG="-$LONG_OPTION"
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else
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OPTARG="$LONG_OPTARG";
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if [[ $LONG_OPTIND -ne -1 ]]; then
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[[ $OPTIND -le $Optnum ]] && OPTIND=$(( $OPTIND+1 ))
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shift $OPTIND
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OPTIND=1
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fi
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fi
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fi
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fi
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# Options followed by another option instead of argument
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if [[ "x${OPTION}" != "x:" ]] && [[ "x${OPTION}" != "x?" ]] && [[ "${OPTARG}" = -* ]]; then
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OPTARG="$OPTION" OPTION=":"
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fi
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# Finally, manage options
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case "$OPTION" in
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h)
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ScriptInfo full
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exit 0
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;;
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v)
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ScriptInfo version
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exit 0
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;;
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:)
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Die "${SCRIPT_NAME}: -$OPTARG: option requires an argument"
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;;
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?)
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Die "${SCRIPT_NAME}: -$OPTARG: unknown option"
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;;
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esac
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done
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shift $((${OPTIND} - 1)) ## shift options
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#============================
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# MAIN SCRIPT
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#============================
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# Trap bad exits with cleanup function
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trap SafeExit EXIT INT TERM
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# Exit on error. Append '||true' when you run the script if you expect an error.
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set -o errexit
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# Check Syntax if set
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$SYNTAX && set -n
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# Run in debug mode, if set
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$DEBUG && set -x
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# Does $INIT_DONE_FILE exist? Is it a regular file? Is it not empty? If YES to all, then
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# exit.
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if [ -e "$INIT_DONE_FILE" ] && [ -f "$INIT_DONE_FILE" ] && [ -s "$INIT_DONE_FILE" ]
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@ -357,5 +192,3 @@ THRESHOLD=$((8 * 1024 * 1024))
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echo "Raspberry Pi initialization complete" >> "$INIT_DONE_FILE"
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sudo shutdown -r now
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