Getting Started. To start Vi, open a terminal or console and simply type vi (without the quotation marks) followed by the name of any existing file or a new file you want to create. Vi works in two main modes, one for editing text and the other for giving commands.To switch between the two modes you use the I and Esc keys.etting Started. To start Vi, open a terminal or console and simply type vi (without the quotation marks) followed by the name of any existing file or a new file you want to create. Vi works in two main modes, one for editing text and the other for giving commands.
(May 2009) Hypermobility, also known as double-jointedness, describes joints that stretch further than normal. For example, some hypermobile people can bend their thumbs backwards to their wrists, bend their knee joints backwards, put their leg behind the head or perform other contortionist tricks. It can affect one or more joints throughout the body.
For the most part, being double-jointed isn't a harmful thing. However, it's not all party tricks: According to Edward R. Laskowski, MD, at the Mayo Clinic, hypermobility can also cause chronic pain and frequent injuries and dislocations for some. In those cases, doctors often recommend physical therapy to strengthen and stabilize the loose joints.