访问和重命名目录需要什么样的权限？

Question

在x，w，r中，访问和重命名目录需要哪个权限。 （我将分别使用cd和mv）

Answer 1

请注意，对于mv，您还需要修改（w）当前目录的权限，因为它有效地将新内容（新名称）写入其中..

演示：

testdir="./$0.$$"
pwd="$(pwd)"
err()(echo "$@">&2; return 1)

echo "creating $testdir"
mkdir "$testdir" || err "can't mkdir $testdir" || exit 1
ls -la "$testdir"

trap 'cd "$pwd"; chmod 777 "$testdir"; rm -rf "$testdir"; exit' 0 1 2 15

#ensure the 'w' for the demo
chmod 755 "$testdir"

echo "Cd to $testdir"
cd "$testdir" || err "Can't cd to $testdir" || exit 1

echo "mkdir a"
mkdir a || err "Can't mkdir a" || exit 1
ls -la

echo renaming a to b
mv a b || err "can't rename a to b" || exit 1
ls -la

echo "rewoke 'w' permission from the $testdir (now .)"
chmod 555 . || err "can't chmod 555 ." || exit 1
ls -la

echo trying to rename b to c
mv b c || err "can't rename b to c - this failed"
ls -la