change directories in ubuntu code example

Example 1: linux change directory

// change directory in terminal
cd folder_name/subfolder_name

// go up one directory level
cd ..

// back to previous directory
cd -

// return to home directory
cd

Example 2: how to open directory in linux using command

Just use "open [path_to_dir]" in Unix or "start [path_to_dir]" in Windows as:
open .	#Open current directdory in Unix
start . #Open current directory in Windows