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The ls command also accepts some flags (also known as options) which are additional information that changes how files or directories are listed in your terminal. Launch your terminal and type ls to see this in action: How to list Files in a Directory with Options Just like you navigate in your File explorer or Finder with a GUI, the ls command allows you to list all files or directories in the current directory by default, and further interact with them via the command line. The ls command is used to list files or directories in Linux and other Unix-based operating systems.
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The Linux shell is a REPL ( Read, Evaluate, Print, Loop) environment where users can enter a command and the shell runs it and returns a result.
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One amazing feature of the Linux operating system is the Command Line Interface (CLI) which allows users to interact with their computer from a shell. It's open source, and is used all over the world across many industries. Linux is one of the most popular Unix based operating systems. Many of these operating systems failed, while others succeeded. Since the creation of Unix in the 1970s, a lot of operating systems have used it as their foundation.
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