#!/bin/bash # # bakit.sh # # Copyright (C) 2010, Branko Majic <branko@majic.rs> # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. # program="bakit.sh" version="0.1" function usage() { cat <<EOF $program $version, a non-interactive utility for creating local on-system backups of files. Usage: $program [OPTIONS] file $program is a non-interactive utility for creating local on-system backups of files. Its primary use is for the various configuration files found on most of the systems. It allows you to easily create a timestamped backup of files specified as input arguments. $program accepts the following options: -v show script version and licensing information -h show usage help Please report bugs and send feature requests to <branko@majic.rs>. EOF } function version() { cat <<EOF $program, version $version +-----------------------------------------------------------------------+ | Copyright (C) 2010, Branko Majic <branko@majic.rs> | | | | This program is free software: you can redistribute it and/or modify | | it under the terms of the GNU General Public License as published by | | the Free Software Foundation, either version 3 of the License, or | | (at your option) any later version. | | | | This program is distributed in the hope that it will be useful, | | but WITHOUT ANY WARRANTY; without even the implied warranty of | | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | | GNU General Public License for more details. | | | | You should have received a copy of the GNU General Public License | | along with this program. If not, see <http://www.gnu.org/licenses/>. | +-----------------------------------------------------------------------+ EOF } # If no arguments were given, just show usage help. if [[ -z $1 ]]; then usage exit 0 fi # Parse the arguments while getopts "vh" opt; do case "$opt" in v) version exit 0;; h) usage exit 0;; *) usage exit 1;; esac done i=$OPTIND shift $(($i-1)) # Create a backup of each provided file while [[ -n $1 ]]; do source="$(echo "$1" | sed -e 's#/\+$##' )" bakFile="${source}.bak.$(date +%Y%m%d)" # Generate a new name for the backup, making sure the old ones do not get # overwritten let i=1 while [[ -e "$bakFile" ]]; do bakFile="${source}.bak.$(date +%Y%m%d).$i" let i=i+1 done cp -pr "$source" "$bakFile" shift done