How to set fileformat=unix for all files opend in vim?

Question

I want change fileformat of all the files.

So I open them use vim *.

Then I want to know if there is any simple way to do this, rather than typing :set fileformat=unix and :wfor each file one by one.

Answer 1

argdo is what you want, not bufdo, since you want to do it on every argument and you don't (necessarily) want to open every file first.

:argdo set ff=unix | update

should do the trick.

Answer 2

Maybe you need bufdo?

 :help bufdo
 bufdo[!] {cmd}     Execute {cmd} in each buffer in the buffer list.
 It works like doing this: 
                :bfirst
                :{cmd}
                :bnext
                :{cmd}
                etc.