mkgpx is a small CLI for generating gpx files designed for use
with location simulation in Xcode.
$ mkgpx San Francisco
<?xml version="1.0"?>
<gpx version="1.1" creator="Xcode">
<wpt lat="37.78008" lon="-122.420168">
<name>San Francisco</name>
</wpt>
</gpx>$ mkgpx San Francisco > SF.gpx$ brew install keith/formulae/mkgpxOR
$ make install