set output 'mountain_b.ps' 
set term postscript color enhanced 'Helvetica,18'  
set style line 1 lt rgb 'red' lw 3  
set style line 2 lt rgb 'sea-green' lw 3  
set style line 3 lt rgb 'blue' lw 3  
set style line 4 lt rgb 'cyan' lw 3  
set style line 5 lt rgb 'violet' lw 3  
set grid 
set key top right 
set ylabel 'Value  '  
set xlabel 'Time (sec) ' 
plot [0:4][-0.2:1.2] 'make_mountains.out' using 2:6          with lines ls 1 lw 4 t ''  
set output 
quit 
