Vi Story
1976 Bill Joy writes vi
The name vi stands for visual
vi-style editors are the most widely spread editors in the
UNIX world.
It is available on any UNIX system
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Vim Story
First developed in 1991 by Bram Moolenaar as a vim
clone for Amiga
It has since changed acronym to vi improved
vim is free software licensed as “charityware”
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Amiga
Where it all started
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Vim Advantages
Highly customizable
Works with many programming languages
Strong OS Integration
Scriptable
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Meet Vim
gvim is the cross
platform graphics
version of vim
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Modal Editing
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Modal Editor
A modal editor changes the meaning of the keys in
each mode of operation
When using vim editor, we have 4 keyboards at our
disposal
Vim modes: normal, visual, insert, ex (command
prompt)
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Normal Mode
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Normal Mode
In normal mode, we can view and manipulate existing
text
Operations: move around the buffer, copy-paste, delete
lines, save, exit.
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Normal Mode
In normal mode, every command takes the form:
[operates_on]
For example, 4dw means delete 4 words.
Not all commands take the operates on param
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Normal Mode Commands
Useful commands - delete:
d (motion) - delete
D - delete until end of line
dd - delete complete line
x - delete a single character (del)
X - delete a single character (backspace)
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Normal Mode Commands
Useful commands - Yanking (copy-paste):
y (motion) - yank
Y - yank till end of line
yy - yank entire line
p - paste text after cursor
P - paste text before cursor
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Normal Mode Commands
Undo/Redo:
u - undo
(hold down control and press r) - redo
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Normal Mode Lab
Start vim on existing file
Delete the first line
Move the next 4 lines to the end of the file
Save and quit (use ZZ)
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Insert Mode
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Insert Mode
Keys we type represent text to be inserted to the buffer
Use one of i,a,o,c to enter
Use key to get back to normal mode
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Normal -> Insert
i - keep cursor position
a - move cursor to the next character
o - move cursor to the next line
I - move cursor to beginning of line
A - move cursor to end of line
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Insert Mode Lab
Start vim on existing file
Delete first paragraph
Write a new first paragraph telling 5 things you love
about vim
Save and Quit (from normal mode)
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Ex Mode
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Extended Mode
The :ex mode is vim’s command prompt
Pressing : in normal mode takes you there
Many commands have both ex versions and normal
version
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Ex Mode Commands
:q - close window
:w filename - save as
:wq - save and exit
:e - open a file for editing
:r filename - read file and paste its content into current
buffer
:r !cmd - run unix command and paste its output into
current buffer
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Ex Mode Commands
vim keeps its own current working directory. Can read
and change using:
:cd, :pwd
!cmd - run a unix command
!cmd % - run a unix command on current file
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Ex Mode Commands
Try the following:
:!ls
:%!ls
:pwd
:e .
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Visual Mode
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Visual Mode Commands
Enter visual mode using v, V,
v - enter visual mode selecting characters
V - enter visual mode selecting lines
- enter visual mode selecting blocks
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Visual Mode Commands
In visual mode, commands will operate on selected text
Try selecting some text and press d, y, p, ~
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:help
Vim has a manual for
every topic
Try the following:
:help del
:help edit
:help 42
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Editing Multiple FIles
Each window in vim displays a buffer
Multiple buffers can be opened at the same time
Window can switch active buffer
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Working With Buffers
:ls - show open buffers
:b[id], :b name - move to buffer by id/name
:bp, :bn - move to next/previous buffer
:bd - close current buffer
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Q & A
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Customizing Vim
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.vimrc file
On vim startup, it looks for a .vimrc file in the user’s
home directory
If such a file exists, every line is executed
Next are some useful .vimrc commands
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Line
Numbers
set number
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.vimrc
set ic “ignore case when searching”
set guifont=Courier\ 14
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Key Bindings
Vim lets us map any key sequence to any action
map binds a key in all modes
imap binds a key in insert mode
cmap binds a key in command line (ex) mode
nmap binds a key in normal mode
vmap binds a key in visual mode
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Key Bindings
Bind C-s to the key sequence , :w, enter, and
then back to insert mode
:imap :wa
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Key Bindings ala Windows
vmap y
imap p
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Key Bindings ala Windows
Open a new file dialog
nmap :browse confirm e
Open a save as dialog
map :browse confirm saveas
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Q & A
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Vim Plugins
Provide extra functionality in vim
Usually written in vimscript
There’s a plugin for that
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Where To Find
http://vim-scripts.org/vim/scripts.html
http://www.vim.org/scripts/index.php
dedicated github repositories
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DEMO - Installing
A Plugin
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Recommended Plugins
NERDTree
Surround
Align
Command-T
NERDCommenter
Also worth checking: janus, vundle
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Thank You
Ynon Perek
ynonperek@yahoo.com
ynonperek.com
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