當年有個老師 講Linux操作係統使用，照本宣科， 講著講著 自己拿著課本嘟嘟囔囔的： 奇怪啊？怎麽這裏有個貓呢？

就是   “cat”  這個單詞。 

不認真備課的話，看見 cat  出現在那個地方確實很奇怪。

 

其實： 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