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#!/bin/sh
# Copyright 2010 Jon Disnard. All rights reserved.
# Redistribution and use in source and binary forms, with or without modification, are
# permitted provided that the following conditions are met:
# 1. Redistributions of source code must retain the above copyright notice, this list of
# conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright notice, this list
# of conditions and the following disclaimer in the documentation and/or other materials
# provided with the distribution.
# THIS SOFTWARE IS PROVIDED BY Jon Disnard ``AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# The views and conclusions contained in the software and documentation are those of the
# authors and should not be interpreted as representing official policies, either expressed
# or implied, of Jon Disnard.
OIFS=$IFS
IFS='/'
count=0
for I in $1; do
if [ x"$I" = x".." ] || [ x"$I" = x"." ]; then
P="$(pwd)/$1"
else
P="$1"
fi
break
done
for I in $P; do
# Resolve relative path punctuation.
if [ x"$I" = x"." ] || [ -z "$I" ]; then
continue
elif [ x"$I" = x".." ]; then
FOO="${FOO%%/${FOO##*/}}"
continue
else
FOO="${FOO}/${I}"
fi
# Dereference symbolic links.
if [ -h "$FOO" ] && [ -x "/bin/ls" ]; then
IFS=$OIFS
set `/bin/ls -l "$FOO"`
while shift ; do
if [ "$1" = "->" ]; then
FOO="$2"
shift $#
break
fi
done
fi
done
IFS=$OIFS
echo "$FOO"
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