gnuplot inline

gistfile1.txt

#  gnuplot < file.plot > file.svg

$data << EOD
# index 0
1 2
2 2
3 3


# two blank new index 1
4 1
6 6

# one blank discontinuous
7 7
8 7
EOD

set style line 1 \
    linecolor rgb '#0060ad' \
    linetype 1 linewidth 2 \
    pointtype 7 pointsize 1
set style line 2 \
    linecolor rgb '#dd181f' \
    linetype 1 linewidth 2 \
    pointtype 5 pointsize 1

set terminal svg size 1000,300 dynamic mouse standalone rounded

set title 'Name of plot'
plot \
    $data index 0 title 'Line 1' with linespoints linestyle 1, \
    $data index 1 title 'Line 2' with linespoints linestyle 2