Replace the file name extension
From Vim Tips Wiki
created 2003 · complexity basic · author Vincent NAUDOT · version 5.7
Here is a map allowing you to press "\'" in insert mode. It saves the current tex file, then compiles it.
map! \' <Esc>:w<CR>:! latex %<CR>i
You may wonder how to open the associated dvi file. Simply replace % with %<.dvi to give:
map! <F4> <Esc>:! xdvi %<.dvi <CR>i "Or (if using K environment): map! <F4> <Esc>:! kdvi %<.dvi <CR>
The same thing applies for any other extension. The following will open the associated ps file with gv.
map! <F5> <Esc>:! gv %<.ps <CR>i
This is deprecated, the preferred form is
And in fact there's a whole bunch more things you can do than just remove the extension - you can remove the directory/path, keep just the extension, etc etc by using different ':' modifiers.
There is the vim-latex-project: http://vim-latex.sourceforge.net/
If you install that in your ~/.vim you will have a lot of improvments over the map. \ll compiles your .tex-file, \lv shows you the .dvi. `d give you \delta, and `D gives you \Delta. There is so much, just check it out!