1set -e 2 3P=${TMPDIR:-/tmp} 4cd $P 5T=$(mktemp -d sh-test.XXXXXX) 6 7chmod 0 $T 8if [ `id -u` -ne 0 ]; then 9 # Root can always cd, regardless of directory permissions. 10 cd -L $T 2>/dev/null && exit 1 11 [ "$PWD" = "$P" ] 12 [ "$(pwd)" = "$P" ] 13 cd -P $T 2>/dev/null && exit 1 14 [ "$PWD" = "$P" ] 15 [ "$(pwd)" = "$P" ] 16fi 17 18chmod 755 $T 19cd $T 20mkdir -p 1/2/3 21ln -s 1/2 link1 22ln -s 2/3 1/link2 23(cd -L 1/../1 && [ "$(pwd -L)" = "$P/$T/1" ]) 24(cd -L link1 && [ "$(pwd -L)" = "$P/$T/link1" ]) 25(cd -L link1 && [ "$(pwd -P)" = "$P/$T/1/2" ]) 26(cd -P link1 && [ "$(pwd -L)" = "$P/$T/1/2" ]) 27(cd -P link1 && [ "$(pwd -P)" = "$P/$T/1/2" ]) 28 29rm -rf ${P}/${T} 30