cd - changes the working directory<br/>
if the directory doesn't exist or the directory is a file, it will throw an error<br/>
if no directory is specified, it will change the working directory to the previous directory<br/>
if the directory is a relative path, it will change the working directory to the relative path from the current directory<br/>
if the directory is an absolute path, it will change the working directory to the absolute path<br/>
usage: cd [directory]<br/>
example: cat /path/to/directory<br/>