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HISTFILE=${TMPDIR}/bashhist-$$
set -o history
set -o histexpand
echo a
echo $(echo !!)
echo a
echo !! $(echo !!)
echo b
echo '!!' '$(echo !!)'
echo c
echo "!!" "$(echo !!)"
echo d
echo "!!" $(echo "!!")
echo e
echo '!!' $(echo '!!')
echo f
echo '!!'
echo f
eval echo '!!'
echo g
echo "!!"
echo g
eval echo "!!"
set +o history
rm -f $HISTFILE # just in case
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