cd stands for Change Directory, it lets you change where you are in a terminal.
To use the cd command, open a terminal and type
It won't do anything (or it will go to your home directory) yet because it doesn't have a path to go to, so lets try and add the name of a directory at the end
$ cd test
This will go into the directory test.
There are a couple of things to know to make life a little easier. You can use the tilde character to go back to the home directory.
$ cd ~
Periods are used to select the current or the previous directory respectively.
$ cd .
$ cd ..
Slashes are used to go trough multiple directories at once
$ cd test/testing
This can be used in combination with the periods
$ cd ../testing2
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