What is the command to list all files in the current directory?

The command to list all files in the current directory is "ls." This command is a fundamental part of the Linux command-line interface and is widely used for displaying the contents of a directory. When executed without any options, "ls" will show a list of files and directories within the current working directory, providing a straightforward view of file names.

Other commands such as "dir" may be more familiar to users coming from a Windows background, as they are used in DOS and Windows command-line environments to achieve a similar result. Nevertheless, "ls" is specific to Unix-like operating systems and adheres to the standard conventions of the Linux shell. The other options, "list" and "show," are not valid commands in the Linux environment for listing directory contents. Understanding the correct application of "ls" is vital for anyone working in a Linux system, as it forms the basis for many file management tasks.