cat has a wrong name

[Artoria2e5]

The name cat is for concatenate, just like the word concat in other languages. Let's call the current cat kitten for it only reads a file.

[SilverRainZ]

23333.

然而 cat 不止是读文件啊，试试 ls | cat. 虽然可能有 bug 就是了

[Artoria2e5]

Let me reword. For it only reads a file or nothing （