shred: enable direct I/O when possible
[coreutils.git] / tests / touch / read-only.sh
blobe9f2bd9f0691d9086c30c89993e62f21110da2b4
1 #!/bin/sh
2 # ensure that touch can operate on read-only files
4 # Copyright (C) 2005-2013 Free Software Foundation, Inc.
6 # This program is free software: you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation, either version 3 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
19 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
20 print_ver_ touch
21 skip_if_root_
23 : > read-only || framework_failure_
24 chmod 444 read-only || framework_failure_
27 touch read-only || fail=1
29 touch - 1< read-only 2> /dev/null && { test ! -f - || fail=1; }
31 Exit $fail