Turn your vim editor into a productivity powerhouse

https://opensource.com/article/18/9/vi-editor-productivity-powerhouse

These 20+ useful commands will enhance your experience using the vim editor.

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Editor's note: The headline and article originally referred to the "vi editor." It has been updated to the correct name of the editor: "vim."
A versatile and powerful editor, vim includes a rich set of potent commands that make it a popular choice for many users. This article specifically looks at commands that are not enabled by default in vim but are nevertheless useful. The commands recommended here are expected to be set in a vim configuration file. Though it is possible to enable commands individually from each vim session, the purpose of this article is to create a highly productive environment out of the box.

Before you begin

The commands or configurations discussed here go into the vim startup configuration file, vimrc, located in the user home directory. Follow the instructions below to set the commands in vimrc:
(Note: The vimrc file is also used for system-wide configurations in Linux, such as /etc/vimrc or /etc/vim/vimrc. In this article, we'll consider only user-specific vimrc, present in user home folder.)
In Linux:

• Open the file with vi $HOME/.vimrc
• Type or copy/paste the commands in the cheat sheet at the end of this article
• Save and close (:wq)

In Windows:

• First, install gvim
• Open gvim
• Click Edit --> Startup settings, which opens the _vimrc file
• Type or copy/paste the commands in the cheat sheet at the end of this article
• Click File --> Save

Let's delve into the individual vi productivity commands. These commands are classified into the following categories:

1. Indentation & Tabs
2. Display & Format
3. Search
4. Browse & Scroll
5. Spell
6. Miscellaneous

1. Indentation & Tabs

To automatically align the indentation of a line in a file:

set autoindent

Smart Indent uses the code syntax and style to align:

set smartindent

Tip: vim is language-aware and provides a default setting that works efficiently based on the programming language used in your file. There are many default configuration commands, including axs cindent, cinoptions, indentexpr, etc., which are not explained here. syn is a helpful command that shows or sets the file syntax.
To set the number of spaces to display for a tab:

set tabstop=4

To set the number of spaces to display for a “shift operation” (such as ‘>>’ or ‘<<’):

set shiftwidth=4

If you prefer to use spaces instead of tabs, this option inserts spaces when the Tab key is pressed. This may cause problems for languages such as Python that rely on tabs instead of spaces. In such cases, you may set this option based on the file type (see autocmd).

set expandtab

2. Display & Format

To show line numbers:

set number

vi_set_number.png

To wrap text when it crosses the maximum line width:

set textwidth=80

To wrap text based on a number of columns from the right side:

set wrapmargin=2

To identify open and close brace positions when you traverse through the file:

set showmatch

picture02-03.jpg

3. Search

To highlight the searched term in a file:

set hlsearch

picture04.png

To perform incremental searches as you type:

set incsearch

vi set incsearch.png

To search ignoring case (many users prefer not to use this command; set it only if you think it will be useful):

set ignorecase

To search without considering ignorecase when both ignorecase and smartcase are set and the search pattern contains uppercase:

set smartcase

More Great Content

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For example, if the file contains: test
Test
When both ignorecase and smartcase are set, a search for “test” finds and highlights both:
test
Test
A search for “Test” highlights or finds only the second line:
test
Test

4. Browse & Scroll

For a better visual experience, you may prefer to have the cursor somewhere in the middle rather than on the first line. The following option sets the cursor position to the 5th row.

set scrolloff=5

Example:
The first image is with scrolloff=0 and the second image is with scrolloff=5.                                                                                                                                                                       

vi_set_scrolloff.jpg

Tip: set sidescrolloff is useful if you also set nowrap.
To display a permanent status bar at the bottom of the vim screen showing the filename, row number, column number, etc.:

set laststatus=2

vi set laststatus.png

5. Spell

vim has a built-in spell-checker that is quite useful for text editing as well as coding. vim recognizes the file type and checks the spelling of comments only in code. Use the following command to turn on spell-check for the English language:

set spell spelllang=en_us

6. Miscellaneous

Disable creating backup file: When this option is on, vim creates a backup of the previous edit. If you do not want this feature, disable it as shown below. Backup files are named with a tilde (~) at the end of the filename.

set nobackup

Disable creating a swap file: When this option is on, vim creates a swap file that exists until you start editing the file. Swapfile is used to recover a file in the event of a crash or a use conflict. Swap files are hidden files that begin with . and end with .swp.

set noswapfile

Suppose you need to edit multiple files in the same vim session and switch between them. An annoying feature that's not readily apparent is that the working directory is the one from which you opened the first file. Often it is useful to automatically switch the working directory to that of the file being edited. To enable this option:

set autochdir

vim maintains an undo history that lets you undo changes. By default, this history is active only until the file is closed. vim includes a nifty feature that maintains the undo history even after the file is closed, which means you may undo your changes even after the file is saved, closed, and reopened. The undo file is a hidden file saved with the .un~ extension.

set undofile

To set audible alert bells (which sound a warning if you try to scroll beyond the end of a line):

set errorbells

If you prefer, you may set visual alert bells:

set visualbell

Bonus

vim provides long-format as well as short-format commands. Either format can be used to set or unset the configuration.
Long format for the autoindent command:

set autoindent

Short format for the autoindent command:

set ai

To see the current configuration setting of a command without changing its current value, use ? at the end:

set autoindent?

To unset or turn off a command, most commands take no as a prefix:

set noautoindent

It is possible to set a command for one file but not for the global configuration. To do this, open the file and type :, followed by the set command. This configuration is effective only for the current file editing session.

vi_set_command.png

For help on a command:

:help autoindent

vi_commands_help.jpg

Note: The commands listed here were tested on Linux with Vim version 7.4 (2013 Aug 10) and Windows with Vim 8.0 (2016 Sep 12).
These useful commands are sure to enhance your vim experience. Which other commands do you recommend?

Cheat sheet

Copy/paste this list of commands in your vimrc file:

" Indentation & Tabs



set autoindent



set smartindent



set tabstop=4



set shiftwidth=4



set expandtab



set smarttab



" Display & format



set number



set textwidth=80



set wrapmargin=2



set showmatch



" Search



set hlsearch



set incsearch



set ignorecase



set smartcase



" Browse & Scroll



set scrolloff=5



set laststatus=2



" Spell



set spell spelllang=en_us



" Miscellaneous



set nobackup



set noswapfile



set autochdir



set undofile



set visualbell



set errorbells