* Compile the code

cd dgale1d/src
make

* Edit input file inp.dat

* Run the code

cd dgale1d/run
../src/dgale1d

It creates three files

avg : contains cell average solution
sol : contains detailed solution
h   : contains cell sizes

* Plot the results

gnuplot 'plot.gnu'
open plot.ps

* Compare with exact solution
  Run SOD test case
  Run gnuplot
  gnuplot> load 'sod.gnu'