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VECR Tour - plot script
#! /bin/sh

umask 077; PATH="/usr/bin"; export PATH

exec 2>/dev/null

(echo "set term pbm\nset output\n\
   plot '-' notitle with linespoints"; cat) |
  /usr/local/bin/gnuplot |
  /usr/local/netpbm/bin/ppmtogif