Vim: execute current file?

After you've executed that once, a short :!! will repeat it.

If you haven't set permissions you can run:

:! sh %

None of the previous answers work if your filename/directory path has spaces in it. Simple fix.

:!"%:p"

:!%:p

,without the spaces, is shorter.

If you want an even shorter shortcut, you can create a custom mapping:

nnoremap <F9> :!%:p

or the more "mnemonic":

nnoremap <leader>r :!%:p