Let's say I rename a augroup in my vimrc; what happens then? Do the autocmds inside that augroup get loaded twice? For example, let's say I rename the following augroup
augroup testgroup autocmd! autocmd BufWrite * :sleep 200m autocmd BufWrite * :echom "Foo" autocmd BufWrite * :echom "Bar" augroup END as
augroup TestGroup autocmd! autocmd BufWrite * :sleep 200m autocmd BufWrite * :echom "Foo" autocmd BufWrite * :echom "Bar" augroup END Your vimrc file is normally only loaded once per vim session. So if you change the file and rename the augroup, nothing happens in your running vim instance.
If you :source $MYVIMRC after you changed it you will end up with two versions of each of these autocommands. One in each group. To see which autocommands are defined you can execute
:au "lists all autocommands (potentially very many) :au BufWrite " lists all autocommands for the BufWrite event :au testgroup " lists all autocommands in the group "testgroup" :au TestGroup " lists all autocommands in the group "TestGroup" In order to remove all autocommads of the "testgroup" in a running vim instance you can execute :au! testgroup.
You can start reading at :h :au.
