pwdf - a mix of ls and pwd

I often need to know the path to a file so that I can put that in an email for example. The only way I know is to copy and paste the output of pwd followed by a slash / followed by the name of the file. This is too much work so I wrote a quick bash script to combine this into one. Now I can do this:

$ cd bin
$ pwdf todo.sh 
/home/peterbe/bin/todo.sh

I call it pwdf since it's pwd + file. Here's the code for the curious:

#!/bin/bash
echo -n `pwd`
echo -n '/'
echo $1

Is there no easier way built in into Linux already?