cat

The cat command is a command-line utility in Unix-like operating systems used to concatenate and display the contents of one or multiple text files.

It is commonly used for tasks such as viewing file contents, combining files, creating new files by merging existing ones, appending to files, and redirecting output.

For example, running cat file1.txt would display the content of the file1.txt file.

The cat command is a versatile tool that plays a central role in working with text files and performing various text-related operations in the command-line environment.