#! @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