VIM Over VI

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VI was written in 1976 by Bill joy and released in 1978 whereas VIM(VIMproved) was written by Bram Moolenaar and released in 1991.

As name implies VIM is improved or extended editor of VI editor or we could probably consider VIM as a super set of VI. 

Some Extended features in VIM Editor are :
  • Vim has been ported to a much wider range of OS's than vi
  • Vim includes support (syntax highlighting, code folding, etc) for several popular programming languages (C/C++, Python, Perl, shell, etc)
  • Vim can be used to edit files using network protocols like SSH and HTTP
  • Vim includes multilevel undo/redo
  • Vim allows the screen to be split for editing multiple files
  • Vim can edit files inside a compressed archive (gzip, zip, tar, etc)
  • Vim includes a built in diff for comparing files (vimdiff)
  • Vim includes support for plugins, and finer control over config and startup files
  • Vim can be scripted with vimscript, or with an external scripting language (e.g. python, perl, shell)

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