illumos-port-bash/tests/histexp1.sub

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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/>.
#
LC_ALL=C
LANG=C
set -o history
set -H
echo '!'
echo "!"
echo !
echo "$( echo '!' )"
echo "$( echo "!" )"
echo "$( echo ! )"
echo $( echo '!' )
echo $( echo "!" )
echo $( echo ! )
echo "$( echo "\!" )"
echo "\!"
echo "$( echo '\!' )"
echo '\!'