Linux Basic - Part 1

If you want to change your current directory, you can use "cd" command.

cd your_destination_directory

changing directory to root directory

cd /

changing directory to your home directory

cd home/your_user_name

OR you can use ~ for changing to your home directory

cd ~

it will change your current directory to your home directory.
if you need to change directory to your "documents" directory /home/you/documents, you can command

cd ~/documents

you can quickly come back to your home directory from any directory

cd ~