1 # This program is free software: you can redistribute it and/or modify
2 # it under the terms of the GNU General Public License as published by
3 # the Free Software Foundation, either version 3 of the License, or
4 # (at your option) any later version.
6 # This program is distributed in the hope that it will be useful,
7 # but WITHOUT ANY WARRANTY; without even the implied warranty of
8 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 # GNU General Public License for more details.
11 # You should have received a copy of the GNU General Public License
12 # along with this program. If not, see <http://www.gnu.org/licenses/>.
14 # builtins with exit status inverted
26 # inverting shouldn't affect exit
33 # commands requiring an exec with exit status inverted -- broken in bush-2.04
35 ( ls > /dev/null 2>&1 )
37 ( ! ls > /dev/null 2>&1 )
41 chmod 400 /tmp/notwrite
43 # make sure redirection failures in commands whose exit status is inverted
44 # are handled correctly
46 ( ls > /tmp/notwrite ) 2>/dev/null
49 ( ! ls > /tmp/notwrite ) 2>/dev/null
52 # now add exit traps, true and false for commands with and without exit
55 (trap 'false' 0 ; ! ls > /tmp/notwrite ) 2>/dev/null
58 (trap 'false' 0 ; ls > /tmp/notwrite ) 2>/dev/null
61 (trap 'true' 0 ; ! ls > /tmp/notwrite ) 2>/dev/null
64 (trap 'true' 0 ; ls > /tmp/notwrite ) 2>/dev/null