How to make the vim call function in .bashrc?

Question

Environment: debian9+vim7.4.

   cat .bashrc
   add(){
        echo $(expr $1 + $2)
    }

Now edit a file in vim

add 1 5         


        

Answer 1

The problem is your function is limited to an interactive shell to execute it you have to do like this

:!bash -ic "add 1 2"