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- [Instructor] I wrote my book, Forging Python, in vim.

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The book is written as a dialogue between

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Greybeard, a seasoned developer

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and Youngstar a bright young developer.

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As you can imagine,

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writing these names got old very quickly.

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To solve this, I used abbreviations.

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You can define an abbreviation with :abb command.

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So let's start vim

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and then :abb _ys, which is the abbreviation, space

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and then what it's going to expand to,

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Youngstar: and then enter.

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And now when I write, I for insert mode _ys

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and when I do space it will be replaced with Youngstar

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and now I can continue writing.

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And how do I do that?

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Try to pick an abbreviation

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that can't be part of a regular word.

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That's why I used underscore

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at the beginning of the abbreviation.

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However, if you'd like to stop an abbreviation

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from expanding, use Control + V.

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So, enter _ys and then Control + V and space,

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not expanded.

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Another use for abbreviation is to fix common typos.

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Let's say I often misspell receive as recieve.

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I can do, escape to normal mode,

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:abb recieve

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should be receive

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and enter.

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And now I can write. So O for new line in insert mode

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and then I'd like to recieve

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and when I do space, it will fix to the right spelling.

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Some recognition...

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And of course you should add these abbreviations

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to your vim RC so they will persist.