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Linux, the powerhouse of operating systems, is well-equipped with a variety of commands to handle file content viewing. Three of the most widely used commands for displaying contents of a file are cat, less, and more. Each of these commands has its unique use cases and features that suit different requirements and preferences. In this article, we'll delve into how to use these commands effectively, highlighting their strengths and practical applications. The cat (short for concatenate) command is one of the most frequently used commands in Unix and Linux operating systems. It is simple, efficient, and has multiple purposes, primarily used to read and display the contents of a file.