为什么在 node.js fs 模块中删除文件被命名为“取消链接”？

Question

In node.js fs module remove files is unlink or unlinkSync. Why it is named unlink? Does it have some origin from somewhere?

Answer 1

unlink is a very common convention for this action. See the linux manual , the GNU C Library , and PHP for examples.

From a discussion on Reddit on this subject:

Deletion is a kind of unlinking. It just removes the pointer/link to the file from the system tables. It doesn't physically go and clean the bits.

You can have multiple links to the same file. The file is only deleted when the ref count reaches zero. So technically its unlinking.

Answer 2

Files paths are represented with links and files are accessed with their links. So when you remove a file you no longer have a link to access. You unlink it.