#!/bin/bash
echo "$(</dev/stdin)" > /tmp/plot
sed -ie 's/^[ \t]*//;s/[ \t]*$//' /tmp/plot
sed -ie 's/:/ /g' /tmp/plot
sed -ie 's/  */,/g' /tmp/plot
echo "e" >> /tmp/plot
N=`head -n1 /tmp/plot | grep -o "," | wc -l`
if [[ $N -le 1 ]]; then
  sed -i '1d' /tmp/plot
  N=`head -n1 /tmp/plot | grep -o "," | wc -l`
fi
options="set datafile separator ','; plot '/tmp/plot' using 1:2 w l title 'c1'"
for i in `seq 3 $((N+1))`; do
  options+=",'/tmp/plot' using 1:$i w l title 'c$((i-1))'"
done
gnuplot -p -e "$options"
rm /tmp/plot