What command is used to list the contents of a directory in Linux?

The command that is commonly used to list the contents of a directory in Linux is "ls." This command displays a list of files and directories within the specified directory and is one of the fundamental commands in Linux for file management.

When executed, "ls" provides a straightforward output of files and subdirectories, making it easier to navigate and manage the filesystem. It can also be enhanced with various options, such as "ls -l" for a detailed listing that includes file permissions, ownership, size, and modification dates, or "ls -a" to include hidden files in the output.

While "cat" is used to display the content of files, "dir" is more associated with DOS/Windows operating systems, and "show" is not a standard command in the Linux environment for listing directory contents. Understanding the purpose and usage of the "ls" command is essential for effective navigation and operation within a Linux system.