摘要：
4.10 Sticky Bit (sticky位) If the bit is set for a directory, a file in the directory can be removed or renamed only if the user has write permission for the directory and one of the following: Owns the file; Owns the directory; Is the superuser. (如果一个目录设置拉sticky位，只有拥有目录的写权限和文件的所有者，目录的所有者或者超级管理员可以移出. 阅读全文