Auto-download script for Classical New England performance podcast

classical_update.sh

#!/bin/bash

RSS_URL="http://streams.wgbh.org/online/clas/clas_performance.xml"

if [ -z $(which xml 2>/dev/null) ]; then 
  echo "xmlstarlet does not appear to be installed."
  echo "Please make sure it is installed and in your path";
  exit 1;
fi

echo "Fetching rss..."
curl --location --progress-bar "$RSS_URL" | xml sel -t -v "//guid" - | while read i; do
  if [ ! -f "$(basename $i)" ]; then
    echo "Retreiving $i..."
    curl --location --progress-bar "$i" > "$(basename $i)" || rm "$(basename $i)"
  else
    break;
  fi;
done