What command would you use to navigate into a directory?

The command used to navigate into a directory is "cd," which stands for "change directory." This command allows users to change their current working directory to another directory specified in the command. For example, typing "cd Documents" would take the user from their current directory into the "Documents" directory, provided it exists at that level.

The other commands serve different purposes in the Linux environment. "ls" is used to list files and directories in the current working directory, providing a way to view the contents without changing directories. "pwd," which stands for "print working directory," displays the current directory's path, helping users understand their location within the file system. Lastly, "mkdir" is a command used to create a new directory rather than navigate into an existing one. Thus, "cd" is the appropriate choice for the task of moving into a directory.