tests/varenv16.sub

   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.
   5 #
   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.
  10 #
  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/>.
  13 #
  14 # test whether or not temporary environment assignments are exported
  15 # in posix mode. works now, posix says it will not work in the future
  16
  17 show2()
  18 {
  19         printf %s "foo=${foo-<unset>}"
  20         echo -n ' environment foo='
  21         printenv foo || echo
  22 }
  23
  24 showfoo()
  25 {
  26         local foo
  27
  28         foo=showfoo show2
  29 }
  30
  31 unset foo
  32 showfoo
  33 foo=foo showfoo
  34 showfoo
  35 echo outside: "foo=${foo-<unset>}"
  36
  37 echo ; echo 'posix mode'
  38 set -o posix
  39 unset foo
  40 showfoo
  41 echo outside 1.0: "foo=${foo-<unset>}"
  42 foo=foo showfoo
  43 showfoo
  44 echo outside 1.1: "foo=${foo-<unset>}"
  45
  46 unset foo
  47 show2
  48 echo outside 2.0: "foo=${foo-<unset>}"
  49 foo=foo show2
  50 show2
  51 echo outside 2.1: "foo=${foo-<unset>}"