How do I navigate buffers in vim? - vim

Question

I normally work with more than 5 files at a time. I use buffers to open different files.
I use commands such as :buf file1, :buf file2 etc.
Is there a faster way to move to different files?

Answer 1

What I use:
Go to the previous buffer: :b# or :bp
Go to the next buffer: :bn
If you know your file is loaded in buffer 5: :b5
To get a list of buffers: :buffers or shorter: :ls
And have a short look on :he buffer
And the wiki entry on Easier Buffer Switching on the Vim Wiki: http://vim.wikia.com/wiki/Easier_buffer_switching
SO already has a question regarding yours: How do you prefer to switch between buffers in Vim?

Answer 2

A few mappings can make your life a lot easier.
This one lists your buffers and prompts you for a number:
nnoremap gb :buffers<CR>:buffer<Space>
This one lists your buffers in the "wildmenu". Depends on the 'wildcharm' option as well as 'wildmenu' and 'wildmode':
nnoremap <leader>b :buffer <C-z>
These ones allow you to cycle between all your buffers without much thinking:
nnoremap <PageUp> :bprevious<CR>
nnoremap <PageDown> :bnext<CR>
Also, don't forget <C-^> which allows you to alternate between two buffers.

Answer 3

Below I describe some excerpts from sections of my .vimrc. It includes mapping the leader key, setting wilds tab completion, and finally my buffer nav key choices (all mostly inspired by folks on the interweb, including romainl). Edit: Then I ramble on about my shortcuts for windows and tabs.
" easier default keys {{{1
let mapleader=','
nnoremap <leader>2 :#"<CR>
The leader key is a prefix key for mostly user-defined key commands (some plugins also use it). The default is \, but many people suggest the easier to reach ,.
The second line there is a command to # execute from the " clipboard, in case you'd like to quickly try out various key bindings (without relying on :so %). (My nmeumonic is that Shift-2 is #.)
" wilds {{{1
set wildmenu wildmode=list:full
set wildcharm=<C-z>
set wildignore+=*~ wildignorecase
For built-in completion, wildmenu is probably the part that shows up yellow on your Vim when using tab completion on command-line. wildmode is set to a comma-separated list, each coming up in turn on each tab completion (that is, my list is simply one element, list:full). list shows rows and columns of candidates. full's meaning includes maintaining existence of the wildmenu. wildcharm is the way to include Tab presses in your macros. The *~ is for my use in :edit and :find commands.
" nav keys {{{1
" windows, buffers and tabs {{{2
" buffers {{{3
nnoremap <leader>bb :b <C-z><S-Tab>
nnoremap <leader>bh :ls!<CR>:b<Space>
nnoremap <leader>bw :ls!<CR>:bw<Space>
nnoremap <leader>bt :TSelectBuffer<CR>
nnoremap <leader>be :BufExplorer<CR>
nnoremap <leader>bs :BufExplorerHorizontalSplit<CR>
nnoremap <leader>bv :BufExplorerVerticalSplit<CR>
nnoremap <leader>3 :e#<CR>
nmap <C-n> :bn<cr>
nmap <C-p> :bp<cr>
The ,3 is for switching between the "two" last buffers (Easier to reach than built-in Ctrl-6). Nmeuonic is Shift- 3 is #, and # is the register symbol for last buffer. (See :marks.)
,bh is to select from hidden buffers (!).
,bw is to bwipeout buffers by number or name. For instance, you can wipeout several while looking at the list, with ,bw 1 3 4 8 10 <CR>. Note that wipeout is more destructive than :bdelete. They have their pros and cons. For instance, :bdelete leaves the buffer in the hidden list, while :bwipeout removes global marks (see :help marks, and the description of uppercase marks).
I haven't settled on these keybindings, I would sort of prefer that my ,bb was simply ,b (simply defining while leaving the others defined makes Vim pause to see if you'll enter more).
Those shortcuts for :BufExplorer are actually the defaults for that plugin, but I have it written out so I can change them if I want to start using ,b without a hang.
You didn't ask for this:
If you still find Vim buffers a little awkward to use, try to combine the functionality with tabs and windows (until you get more comfortable?).
" windows {{{3
" window nav
nnoremap <leader>w <C-w>
nnoremap <M-h> <C-w>h
nnoremap <M-j> <C-w>j
nnoremap <M-k> <C-w>k
nnoremap <M-l> <C-w>l
" resize window
nnoremap <C-h> <C-w><
nnoremap <C-j> <C-w>+
nnoremap <C-k> <C-w>-
nnoremap <C-l> <C-w>>
Notice how nice ,w is for a prefix. Also, I reserve Ctrl key for resizing, because Alt (M-) is hard to realize in all environments, and I don't have a better way to resize. I'm fine using ,w to switch windows.
" tabs {{{3
nnoremap <leader>t :tab
nnoremap <M-n> :tabn<cr>
nnoremap <M-p> :tabp<cr>
nnoremap <C-Tab> :tabn<cr>
nnoremap <C-S-Tab> :tabp<cr>
nnoremap tn :tabe<CR>
nnoremap te :tabe<Space><C-z><S-Tab>
nnoremap tf :tabf<Space>
nnoremap tc :tabc<CR>
nnoremap to :tabo<CR>
nnoremap tm :tabm<CR>
nnoremap ts :tabs<CR>
nnoremap th :tabr<CR>
nnoremap tj :tabn<CR>
nnoremap tk :tabp<CR>
nnoremap tl :tabl<CR>
" or, it may make more sense to use
" nnoremap th :tabp<CR>
" nnoremap tj :tabl<CR>
" nnoremap tk :tabr<CR>
" nnoremap tl :tabn<CR>
In summary of my window and tabs keys, I can navigate both of them with Alt, which is actually pretty easy to reach. In other words:
" (modifier) key choice explanation {{{3
"
" KEYS CTRL ALT
" hjkl resize windows switch windows
" np switch buffer switch tab
"
" (resize windows is hard to do otherwise, so we use ctrl which works across
" more environments. i can use ',w' for windowcmds o.w.. alt is comfortable
" enough for fast and gui nav in tabs and windows. we use np for navs that
" are more linear, hjkl for navs that are more planar.)
"
This way, if the Alt is working, you can actually hold it down while you find your "open" buffer pretty quickly, amongst the tabs and windows.

Answer 4

Once the buffers are already open, you can just type :b partial_filename to switch
So if :ls shows that i have my ~./vimrc open, then I can just type :b vimr or :b rc to switch to that buffer

Answer 5

There are many ways to solve. The best is the best that WORKS for YOU. You have lots of fuzzy match plugins that help you navigate. The 2 things that impress me most are
1) CtrlP or Unite's fuzzy buffer search
2) LustyExplorer and/or LustyJuggler
And the simplest :
:map <F5> :ls<CR>:e #
Pressing F5 lists all buffer, just type number.