binding emacs key combination to external program?

[Roger Levy]

Hi,

I use a shell script to compile my LaTeX files from the command line
and turn them into PDFs in one go-around (using ps2pdf rather than
pdflatex), and I would like to bind an Emacs key combination to the
execution of this script on the buffer.  How can I do this?  I'm
having a hard time figuring it out from the manual.

Many thanks,

Roger