## history
  
  Provides a couple of convenient aliases for using the `history` command to examine your command line history.
  
  ### Requirements
  
  * None.
  
  ### Usage
  
  * If `h` is called, your command history is listed. Equivalent to using `history`
  
  * If `hsi` is called with an argument, a **case insensitive** `grep` search is performed on your command history, looking for commands that match the argument provided
  
  * If `hsi` is called without an argument you will help on `grep` arguments