Which command is used to show the current directory in the command line?

The command that shows the current directory in the command line is "pwd," which stands for "print working directory." When executed, this command returns the full path of the directory you are currently in, allowing you to understand your location within the file system hierarchy.

"cd," which stands for "change directory," is used to navigate to a different directory rather than displaying the current one. "ls" lists the files and directories within the current directory, providing information about its contents, but it does not indicate your location in the directory tree. "dir" is a command more commonly associated with DOS-like systems; while it may show directory listings in some Linux environments, it does not display the current working directory, which is the primary function of "pwd."