source: nutchez-0.1/plugins/parse-ext/command @ 177

#!/bin/bash
#
# Sample bash script as external command invoked by parse-ext plugin
#
# 20040701, John Xing

set -e

if  [ $# -ne 1 ]; then
  echo Usage:$0 mimeType >&2
  exit 1
fi

case $1 in
"application/vnd.nutch.example.cat")
  cat
  ;;
"application/vnd.nutch.example.md5sum")
  md5sum
  ;;
*)
  echo "Can't parse mimeType $1" >&2
  exit 1
esac