Update cheatsheets

vim

@@ -0,0 +1,43 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# 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:
+
+`: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>`