pctb/yppsc-ppmlookup

   1 #!/bin/sh
   2 set -ex
   3
   4 needle=$(pnmnoraw)
   5
   6 exec 3<database.ppm
   7
   8 while true; do
   9         read <&3 title
  10         if [ x"$title" = x. ]; then
  11                 exit 0
  12         fi
  13         straw=$(pnmnoraw <&3)
  14         if [ x"$straw" = x"$needle" ]; then
  15                 printf "%s\n" "$title"
  16                 exit 0
  17         fi
  18 done