2 # Verify behavior of printenv.
4 # Copyright (C) 2009 Free Software Foundation, Inc.
6 # This program is free software: you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation, either version 3 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
19 if test "$VERBOSE" = yes; then
21 env -- printenv --version
27 # Without arguments, printenv behaves like env. Some shells provide
28 # printenv as a builtin, so we must test via absolute name.
29 # But beware of $_, set by many shells to the last command run.
30 env | grep -v '^_' > exp || framework_failure
31 env -- printenv | grep -v '^_' > out || fail=1
32 compare exp out || fail=1
34 # POSIX is clear that environ may, but need not be, sorted.
35 # Environment variable values may contain newlines, which cannot be
36 # observed by merely inspecting output from printenv.
37 if env -- printenv | grep '^ENV_TEST' >/dev/null ; then
38 skip_test_ "environment has potential interference from ENV_TEST*"
41 # Printing a single variable's value.
42 env -- printenv ENV_TEST > out
45 echo a > exp || framework_failure
46 ENV_TEST=a env -- printenv ENV_TEST > out || fail=1
47 compare exp out || fail=1
49 # Printing multiple variables. Order follows command line.
50 ENV_TEST1=a ENV_TEST2=b env -- printenv ENV_TEST2 ENV_TEST1 ENV_TEST2 > out \
52 ENV_TEST1=a ENV_TEST2=b env -- printenv ENV_TEST1 ENV_TEST2 >> out || fail=1
53 cat <<EOF > exp || framework_failure
60 compare exp out || fail=1
62 # Exit status reflects missing variable, but remaining arguments processed.
63 ENV_TEST1=a env -- printenv ENV_TEST2 ENV_TEST1 > out
65 ENV_TEST1=a env -- printenv ENV_TEST1 ENV_TEST2 >> out
67 cat <<EOF > exp || framework_failure
71 compare exp out || fail=1
73 # Non-standard environment variable name. Shells won't create it, but
74 # env can, and printenv must be able to deal with it.
75 echo b > exp || framework_failure
76 env -- -a=b printenv -- -a > out || fail=1
77 compare exp out || fail=1
79 # Silently reject invalid env-var names.
80 # Bug present through coreutils 8.0.
81 env a=b=c printenv a=b > out