什么是4位八进制Unix文件权限系统？ [关闭]

Question

3-digit:

644 (user group other) 4-digit:

4750 (??? user group other) What is the first octal digit for in 4-digit octal Unix file permission notation?

Answer 1

It is called sticky bit in linux. you can read it detaily from this link: https://www.linuxnix.com/sticky-bit-set-linux/