cd - Change directory

cd command – this command takes us to a specific directory.

cd /

Change to the root directory. Root is the uppermost/topmost directory in the directory structure. No parent is there for the root.

cd ..

Change to the immediate parent directory. One step back.

cd .

Change to the current directory.

cd

cd ~

cd $HOME

By default it is change to the home directory for cd and rest does the same.

cd -

Toggling between two recent directories.

cd ../../

Goes to two directories back.

cd ../../../

Goes to 3 directories back towards root.