cd: The cd command allows you to change directories. When you open a terminal, you will be in your home directory. To move around the filesystem, use cd. • To navigate to your desktop directory, use cd ~/Desktop • To navigate into the root directory, use cd / • To navigate to your home directory, use cd • To navigate up one directory level, use cd .. • To navigate to the previous directory (or back), use cd - • To navigate through multiple levels of directories at once, use cd /var/www, for example, which will take you directly to the /www subdirectory of /var.