tldr/pages/common/vim.md

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# vim
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> Vim (Vi IMproved), a programmer's command-line text editor, provides several modes for different kinds of text manipulation.
> Pressing `i` enters edit mode. `<Esc>` goes back to normal mode, which doesn't allow regular text insertion.
> More information: <https://www.vim.org>.
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- Open a file:
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`vim {{path/to/file}}`
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- Save a file:
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`:write`
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- Quit without saving:
`<Esc>:quit!<Enter>`
- Open a file at a specified line number:
`vim +{{line_number}} {{path/to/file}}`
- View help for setting (such as {{set number}}):
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`<Esc>:help '{{setting_name}}'`
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- Undo the last operation:
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`<Esc>u`
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- Search for a pattern in the file (press `n`/`N` to go to next/previous match):
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`<Esc>/{{search_pattern}}<Enter>`
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- Perform a regex substitution in the whole file:
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`<Esc>:%s/{{pattern}}/{{replacement}}/g<Enter>`