Vim Editor For Beginners : Commands and Things you should Know about VIM

A Brief History:

When UNIX was developed and emerged at Bell Laboratories in 70's,The initial version of UNIX that was distributed had a line editor called as 'ed'  developed by Ken Thomson,'ed' was considered very difficult to use ,many people tried to enhance the functionality of 'ed' and an enhanced version of 'ed' was developed by George Coulouris and named it as 'em' .After some time Bill Joy a student at Berkeley merged various features of 'ed' and 'em' and produced a new version called as 'ex'. Though 'ex' had many combined features of 'ed' and 'em' it was still a line editor, then in 1976 'vi' was developed and it was a rewritten version of 'ex' .Vi was not a line editor like 'ed' or 'em'  it was a screen editor and had many features  of 'ex'.Vim is now improved version of Vi.

Vim as a modal editor:

Vim is known as a modal editor which means Vim will perform certain operations depending on the mode in which it is currently set. Three modes are most important to understand the working of vim.
Command mode,Insert mode and Command-line mode.