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# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
#
set +o posix
shopt -u xpg_echo
echo $SHELLOPTS
set +B # on by default
# shouldn't appear
echo $SHELLOPTS | grep braceexpand
export SHELLOPTS
# but it will appear here because it's enabled by default
${THIS_SH} -c 'echo $SHELLOPTS'
# turn off an option that's on by default
${THIS_SH} +B -c 'echo $SHELLOPTS'
${THIS_SH} +o braceexpand -c 'echo $SHELLOPTS'
# turn on an option that's off by default
if ${THIS_SH} -f -c 'echo $SHELLOPTS' | grep noglob 2>&1; then
:
else
echo 'SHELLOPTS: noglob not inherited correctly'
fi
# in a different way
set -o noglob
if ${THIS_SH} -c 'echo $SHELLOPTS' | grep noglob 2>&1; then
:
else
echo 'SHELLOPTS: noglob not inherited correctly'
fi
# restore default state
set -o braceexpand
set +o noglob
# but assigning to SHELLOPTS is an error; have to use set -o/+o
SHELLOPTS=$SHELLOPTS
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