Excerpts from ninjaaron's message of Thu Nov 10 23:24:13 +0100 2011:
> In bash, I can do something like this:
> foo=`cat bar`
let foo=system('cat bar')
or let foo = join(readfile('bar'),"\n") # lookup binary options
> I want to use the cat command to assign a value in my vimrc. I'm sure this
> is possible, but I can't figure it out.
Why do you want to use cat? ..