Explain cd .. command.

The cd .. command is used in the terminal to navigate to the parent directory of the current working directory.

Here's how it works:

• cd stands for "change directory."
• .. represents the parent directory of the current directory.

For example, if you are currently in /home/user/documents and you execute cd .., you will move up to /home/user.

You can use this command to traverse the directory structure upwards.