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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/>.
#
: ${TMPDIR:=/tmp}
HISTFILE=${TMPDIR}/history-$$
HISTSIZE=4
HISTIGNORE="history*"
set -o history
history -c
echo 1
echo 2
echo 3
echo 4
echo 5
echo 6
history
history -d -1
history
echo 6
echo 7
history
history -d -1
history
echo 7
echo 8
history -d -2--1
history
echo 9
echo 10
history
history -d 5-7
history
unset HISTFILE
exit 0
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