plot "vm_m1.dat" using 1:2 with lines title "y",\
"vm_m1.dat" using 1:3 with lines title "r",\
"vm_m1.dat" using 1:4 with lines title "l",\
"vm_m1.dat" using 1:5 with lines title "m",\
"vm_m1.dat" using 1:6 with lines title "w",\
"vm_m1.dat" using 1:7 with lines title "u",\
"vm_m1.dat" using 1:8 with lines title "Pt"