File manipulation using cat, grep, and more

Using commands such as cat and grep is a fundamental aspect of working with files in Linux and other Unix-like systems. These commands provide powerful and versatile tools for managing and extracting information from files. They are essential for system administrators, developers, and anyone who works with text files regularly. One of the main reasons for the importance of file manipulation commands is their ability to efficiently process and manipulate large amounts of data. Commands such as cat, which stands for concatenate, allow users to concatenate multiple files or display the contents of a file on the standard output. This can be useful for merging files, redirecting output to other commands or files, and examining the contents of a file without opening it in a text editor. Another essential command is grep, which is used for searching and pattern matching within files. grep enables users to search for specific text patterns, extract...