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62 lines
2.4 KiB
Markdown
62 lines
2.4 KiB
Markdown
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# vim / neovim
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Note that the commands I mention in this file are the ones I use the most often and are by no means exhaustive.
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For some vim commands, I use a `<leader>` keybinding as an alternative since I find it faster. Some of those commands may not be mentioned in this helpfile. Please see `.vimrc` for more details.
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## Starting vim
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- Open a file at a particular line number: `vim +<number> <file>`
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## Movement Keys
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### Inserting Things
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- Insert before the cursor: `i`
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- Insert at the beginning of the line: `I`
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- Insert after the cursor: `a`
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- Insert at the end of the line: `A`
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## Indenting Things
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- Indent the current line: `>>`
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- Indent the next 10 lines: `10>>`
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- Unindent the current line: `<<`
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- Unindent the next 10 lines: `10<<`
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Note that all other vim movements work while indenting things as well.
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## Commands
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### Syntax Highlighting
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- Change the syntax highlighting of the current file: `:set syntax=<syntax>`
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- Get the syntax of the current file: `:set syntax?`
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- Note that to get the value of any variable, just add `?` to it.
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- It is possible to manually change the syntax of a file, although you shouldn't do this since plugins and other features you may have will not be loaded.
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## Common operations
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### Commenting lines
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- Comment the current line:
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- Simply press `I` to enter insert mode at the beginning of the line. From there you can do whatever you want, including inserting a comment.
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- If you want to repeat the process for multiple lines, you can go to the line you want to change and press `.` to execute the last set of key combinations.
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- Comment multiple lines at the same time:
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- Use `<C-v>` to enter visual block mode
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- Select the lines you want to comment out with `j/k`
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- Press `I` to go to the beginning of the line
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- Type whatever you want to put at the beginning of all the lines here, including comments
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- When you're done, exit the mode as usual
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### Uncommenting lines
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- Uncomment the current line:
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- Simply press `0` to go to the beginning of the line (if needed)
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- Then, press `x` to delete the character under the cursor
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- Uncomment multiple lines at the same time:
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- Use `<C-v>` to enter visual block mode
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- Select the lines you want to comment out with `j/k`
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- Press `x` to delete the first character, repeatedly if necessary
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- Exit the mode as usual
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