vkbackup-system-config.sh

vkbackup-system-config.sh

#!/bin/sh

VERSION="Time-stamp: <2019-10-10 17:18:58 vk>"

## This script backups several things to a given target directory

## Initial tings to backup are taken from:
## https://www.debian.org/releases/stretch/amd64/release-notes/ch-upgrading.en.html
##    -> "4.1.1. Back up any data or configuration information"
##       «The main things you'll want to back up are the contents of /etc, /var/lib/dpkg, /var/lib/apt/extended_states and
##        the output of dpkg --get-selections "*" (the quotes are important).»

print_usage()
{
##########################################################################
cat <<EOF

  $0

  author:      Karl Voit, tools@Karl-Voit.at
  version:     ${VERSION}
  homepage:    -
  copyright:   GPLv3

  usage:       ${FILENAME} [<directory>]

  example:     ${FILENAME} /mnt/2TBbackup/vkbackup-system-config/

  ... backups several system-specific settings to the target directory

  Things that get backuped:
  - directories:
    - /etc
    - /var/lib/dpkg
    - /var/lib/apt/extended_states
  - output of:
    - dpkg --get-selections "*"
    - crontab -u vk -l
    - crontab -u root -l

EOF
##########################################################################
}

if [ $# -eq 0 ]; then
    echo "\nERROR: no parameter found\n"
    print_usage
    exit 1
elif [ -d "${1}" ]; then
    DESTDIR="${1}"

    rsync --archive --quiet --recursive --delete /etc ${DESTDIR}/
    rsync --archive --quiet --recursive --delete /var/lib/dpkg ${DESTDIR}/
    rsync --archive --quiet --recursive --delete /var/lib/apt/extended_states ${DESTDIR}/

    dpkg --get-selections "*" > ${DESTDIR}/dpkg_--get-selections.log

    crontab -u vk -l > ${DESTDIR}/crontab_-u_vk_-l.log
    crontab -u root -l > ${DESTDIR}/crontab_-u_root_-l.log

else
    ## parameter is no directory
    echo "\nERROR: parameter is not a directory\n"
    print_usage
    exit 2
fi
#end