头上有什么相反的？(What's the opposite of head? I want all but the first N lines of a file)

头上有什么相反的？(What's the opposite of head? I want all but the first N lines of a file)

给定一个长度不明的文本文件，我如何读取，例如文件的前2行呢？ 我知道tail会给我最后的N行，但我不知道N是提前的。

所以对于一个文件

AAAA BBBB CCCC DDDD EEEE

我想要

CCCC DDDD EEEE

和一个文件

AAAA BBBB CCCC

我会得到的

CCCC

Given a text file of unknown length, how can I read, for example all but the first 2 lines of the file? I know tail will give me the last N lines, but I don't know what N is ahead of time.

So for a file

AAAA BBBB CCCC DDDD EEEE

I want

CCCC DDDD EEEE

And for a file

AAAA BBBB CCCC

I'd get just

CCCC

最满意答案

tail --help如下：

-n, --lines=K output the last K lines, instead of the last 10; or use -n +K to output lines starting with the Kth

所以要过滤掉前2行， -n +3应该给你你要查找的输出（从3开始）。

tail --help gives the following:

-n, --lines=K output the last K lines, instead of the last 10; or use -n +K to output lines starting with the Kth

So to filter out the first 2 lines, -n +3 should give you the output you are looking for (start from 3rd).