ORIGD=$PWD
: ${TMPDIR:=/var/tmp}

SD=$TMPDIR/scratch-$$
[ -d $SD ] || mkdir $SD
cd $SD
mkdir tmp

D=./tmp/a
D1='./t\mp/a'

mkdir -m700 ./tmp/a ./tmp/a/b
touch ./tmp/a/b/c

echo ./tmp/a/b/* "./tmp/a/"b/* "./tmp/a/b"/*

chmod -r ./tmp/a            
echo ./tmp/a/b/* "./tmp/a/"b/* "./tmp/a/b"/*
echo "./tmp/a/b"/*

bs=\\
echo ./tmp${bs}/a/b/*
echo ./tmp${bs}/a/b/c
echo ./tm[p]${bs}/a/b/c
echo ./t${bs}mp/a/b/*

recho "./tmp/a"/*
recho "$D"/*
recho "$D"/b/*

recho $D/*
recho $D/b/*
recho $D1/*
recho $D1/b/*
recho $D/
recho $D/b/
recho $D1/
recho $D1/b/

recho ./t\mp/a/*
recho ./t\mp/a/b/*

recho ./tmp/a*
recho ./tmp/a/b*
recho ./t\mp/a*
recho ./t\mp/a/b*

recho ./t\mp/

chmod +r ./tmp/a
rm -rf ./tmp/a

cd $ORIGD
rm -rf $SD