1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
#! @builddir@/grub-shell-tester
#
# Copyright (C) 2010 Free Software Foundation, Inc.
#
# GRUB 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.
#
# GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
true
echo $?
! true
echo $?
false
echo $?
! false
echo $?
#
# Negated forms (copied from grub_script_if.in)
#
#basic if, execute
if ! true; then echo yes; fi
#basic if, no execution
if ! false; then echo no; fi
#if else, execute if path
if ! true; then echo yes; else echo no; fi
#if else, execute else path
if ! false; then echo no; else echo yes; fi
#if elif, execute elif
if ! false; then echo no; elif ! true; then echo yes; fi
#if elif else, execute else
if ! false; then echo no; elif ! false; then echo no; else echo yes; fi
#if elif(1) elif(2), execute elif(2)
if false; then echo no; elif ! false; then echo no; elif ! true; then echo yes; fi
#if elif(1) elif(2) else, execute else
if false; then echo no; elif false; then echo no; elif ! false; then echo no; else echo yes; fi
#if {if elif else}, execute elif
if true; then if false; then echo no; elif ! true; then echo yes; else echo no; fi; fi
#if {if elif} else, execute elif. ofcourse no dangling-else problem due to "fi"
if true; then if ! false; then echo no; elif true; then echo yes; fi; else echo no; fi
|
