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#!/bin/sh
#
# $OpenBSD: forward-lines.sh,v 1.1 2015/11/24 04:04:19 tedu Exp $
# test if tail grep the correct number of blocks from a file.
DIR=$(mktemp -d)
echo DIR=${DIR}
NAME=${0##*/}
OUT=${DIR}/${NAME%%.sh}.out
i=0
while [ ${i} -lt 512 ]; do
echo ${i} >> ${DIR}/bar
i=$((i+1))
done
tail -n +5 ${DIR}/bar > ${OUT}
tail +5 ${DIR}/bar > ${OUT}1
diff -u ${OUT} ${OUT}1 || exit 1
diff -u ${OUT} ${0%%.sh}.out || exit 1
# cleanup if okay
rm -Rf ${DIR}
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