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