How can you check the current working directory?

The command to check the current working directory in Linux is "pwd," which stands for "print working directory." When you execute this command in the terminal, it displays the full path of the directory that the user is currently in. This is a fundamental command that helps users navigate the filesystem by confirming their current location within it.

The other options provided do not perform this function. "currentdir" is not a valid command in Linux for checking the working directory, while "dir" is typically used in DOS and Windows environments to list directory contents, not to show the current directory. "ls" is another common command that lists the files and directories within the current directory but, like "dir," does not provide the path of the current working directory itself. Therefore, "pwd" is the precise and correct choice for this task.