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tldr/pages/common/vim.md

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# vim
> Vim (Vi IMproved), a command-line text editor, provides several modes for different kinds of text manipulation.
> Pressing `<i>` in normal mode enters insert mode. Pressing `<Esc>` goes back to normal mode, which enables the use of Vim commands.
> See also: `vimdiff`, `vimtutor`, `nvim`.
> More information: <https://www.vim.org>.
- Open a file:
`vim {{path/to/file}}`
- Open a file at a specified line number:
`vim +{{line_number}} {{path/to/file}}`
- View Vim's help manual:
`<:>help<Enter>`
- Save and quit the current buffer:
`{{<Esc><Z><Z>|<Esc><:>x<Enter>|<Esc><:>wq<Enter>}}`
- Enter normal mode and undo the last operation:
`<Esc><u>`
- Search for a pattern in the file (press `<n>`/`<N>` to go to next/previous match):
`</>{{search_pattern}}<Enter>`
- Perform a regular expression substitution in the whole file:
`<:>%s/{{regular_expression}}/{{replacement}}/g<Enter>`
- Display the line numbers:
`<:>set nu<Enter>`