1#!/bin/sh
2# Demonstrate using a combination of --reference and --date to
3# set the time of a file back by an arbitrary amount.
4
5# Copyright (C) 2004-2023 Free Software Foundation, Inc.
6
7# This program is free software: you can redistribute it and/or modify
8# it under the terms of the GNU General Public License as published by
9# the Free Software Foundation, either version 3 of the License, or
10# (at your option) any later version.
11
12# This program is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15# GNU General Public License for more details.
16
17# You should have received a copy of the GNU General Public License
18# along with this program.  If not, see <https://www.gnu.org/licenses/>.
19
20. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
21print_ver_ touch
22
23TZ=UTC0 touch --date='2004-01-16 12:00 +0000' f || framework_failure_
24
25
26# Set times back by 5 days.
27touch --ref f --date='-5 days' f || fail=1
28
29TZ=UTC0 ls -og --time-style=+%Y-%m-%d f > out.1 || fail=1
30sed 's/ f$//;s/.* //' out.1 > out
31
32cat <<\EOF > exp || framework_failure_
332004-01-11
34EOF
35
36compare exp out || fail=1
37
38Exit $fail
39