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# test whether or not temporary environment assignments are exported
# in posix mode. works now, posix says it will not work in the future
show2()
{
printf %s "foo=${foo-<unset>}"
echo -n ' environment foo='
printenv foo || echo
}
showfoo()
{
local foo
foo=showfoo show2
}
unset foo
showfoo
foo=foo showfoo
showfoo
echo outside: "foo=${foo-<unset>}"
echo ; echo 'posix mode'
set -o posix
unset foo
showfoo
echo outside 1.0: "foo=${foo-<unset>}"
foo=foo showfoo
showfoo
echo outside 1.1: "foo=${foo-<unset>}"
unset foo
show2
echo outside 2.0: "foo=${foo-<unset>}"
foo=foo show2
show2
echo outside 2.1: "foo=${foo-<unset>}"
|
