#!/usr/bin/gnuplot

set term xterm

plot   'c4_p1.data' using 1:2 with lines lw 3 lc 1, \
       'c4_p2.data' using 1:2 with lines lw 3 lc 2, \
       'c4_p3.data' using 1:2 with lines lw 3 lc 3, \
       'c4_p4.data' using 1:2 with lines lw 3 lc 4
pause -1

plot   'c4_p1.data' using 1:3 with lines lw 3 lc 5, \
       'c4_p2.data' using 1:3 with lines lw 3 lc 6, \
       'c4_p3.data' using 1:3 with lines lw 3 lc 7, \
       'c4_p4.data' using 1:3 with lines lw 3 lc 8
pause -1