当年有个老师 讲Linux操作系统使用，照本宣科， 讲着讲着 自己拿着课本嘟嘟囔囔的： 奇怪啊？怎么这里有个猫呢？

就是   “cat”  这个单词。 

不认真备课的话，看见 cat  出现在那个地方确实很奇怪。

 

其实： The cat command in Linux is a versatile tool used for various file-related operations. It stands for "concatenate" and is primarily used to read, concatenate, and write file contents to the standard output. Here are some common uses and examples of the cat command:

Basic Syntax

The basic syntax of the cat command is:

cat [OPTION] [FILE]

• OPTION: Represents various command-line options.

• FILE: The name of the file(s) to be processed.

Viewing File Contents

To display the contents of a single file:

cat filename.txt