: ${TMPDIR:=/tmp}

set -o history
HISTFILE=$TMPDIR/history-$$

history -c

echo a
echo b
echo c
echo d
echo e

history ; echo 

history -d 2-4

history

echo f
echo g
echo h
echo i
history -d 6--1
history ; echo

history -d 16-40
history -d 1-200
history -d -20-50
history -d 1--50
history -d 5-0xaf

history ; echo

unset HISTFILE
exit 0
