将行转换为固定列长度

Question

我想简单地获取给定的文本文件并强制最大列长度为 80。我该如何解决这个问题：

Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal.

并将其变成这样：

Four score and seven years ago our fathers brought forth on this continent, a n
ew nation, conceived in Liberty, and dedicated to the proposition that all men 
are created equal.

Answer 1

使用折叠命令：

fold -s -w 80 filename

-s如果您更喜欢在字符边界而不是单词边界（实际上是空格）处中断，请忽略该选项。

我怀疑如果文本以多字节编码（例如 UTF-8（并包含非 ASCII 字符））进行编码，这将不会很好地工作。

如果您使用的是 Windows，请使用Cygwin、UnxUtils或GnuWin32 - 它们可能包括折叠。