3 #########################################################################
4 # This program is free software: you can redistribute it and/or modify #
5 # it under the terms of the version 3 of the GNU General Public License #
6 # as published by the Free Software Foundation. #
8 # This program is distributed in the hope that it will be useful, but #
9 # WITHOUT ANY WARRANTY; without even the implied warranty of #
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU #
11 # General Public License for more details. #
13 # You should have received a copy of the GNU General Public License #
14 # along with this program. If not, see <http://www.gnu.org/licenses/>. #
16 # Written by and Copyright (C) Francois Fleuret #
17 # Contact <francois@fleuret.org> for comments & bug reports #
18 #########################################################################
20 # This command makes a backup copy of a given directory into a backup
21 # directory, tags it with the date and time, and uses rsync
22 # intelligent features to avoid making superfluous copies of files
23 # which are already backuped.
27 [[ ${FREEZE_DIR} ]] || FREEZE_DIR=${HOME}/.backups
29 if [[ ! -d ${FREEZE_DIR} ]]; then
30 echo "Can not find directory ${FREEZE_DIR}" >&2
38 full_path="${path}/${dir}"
40 date=$(date +%Y_%b_%d_%H:%M:%S)
42 if [[ ! -d "${full_path}" ]]; then
43 echo "Can not find directory ${full_path}" >&2
47 if [[ $(find "${full_path}" -type f -name "core*" -o -name "vgcore.[0-9]*") ]]; then
48 # rm -i $(find "${full_path}" -type f -name "core" -o -name "vgcore.[0-9]*")
49 echo "There seems to be core files in ${full_path}" >&2
53 backup="${FREEZE_DIR}/${full_path}"
55 mkdir -p "${FREEZE_DIR}/${path}"
57 current_backup="${backup}:::current"
58 new_backup="${backup}:::${date}"
60 if [[ -h "${current_backup}" ]]; then
61 rsync --link-dest="${current_backup}/" -axz "${full_path}/" "${new_backup}/"
62 rm -f "${current_backup}"
64 if [[ -a ${current_backup} ]]; then
65 echo "${current_backup} exists and is not a symbolic link" >&2
68 rsync -axz "${full_path}/" "${new_backup}/"
72 ln -s "${new_backup}" "${current_backup}"
76 du -sh "${new_backup}"