Script para "grabar" los programas de "La Corneta" www.los40.com.mx/lacorneta/ y generar RSS para suscribirse como podcast

corneta.sh

#!/bin/bash
# by maop <me@maop.mx>
# RSS: maop.gulegro.org/corneta/corneta.xml
# v0.1 29/05/2013
#
# Install:
# Modify Paths, and create a crontab with:
#
# 0 13 * * 1-5     /home/maop/scripts/corneta.sh
#
# (program starts at 13:00 and ends at 15:00


filename="corneta.$(date +'%Y-%m-%d')"

(sleep 2h;sleep 10m; killall wget) &
/usr/bin/wget "http://3653.live.streamtheworld.com/LOS40_MEXICOAAC?streamtheworld_user=1&nobuf=1369674816149" -O /home/maop/sites/maop.gulegro.org/corneta/$filename.flv -o /tmp/corneta.log

cd /home/maop/sites/maop.gulegro.org/corneta/

#/usr/bin/ffmpeg -i $filename.flv -acodec libmp3lame -ab 128 $filename.mp3
#cambiamos a m4a: ffmpeg -i corneta.2013-05-27.flv -acodec copy prueba.m4a

/usr/bin/ffmpeg -i $filename.flv -acodec copy  $filename.m4a


# Listo el programa del dia ahora a actualizar el RSS

IFS='' read -r -d '' RSS <<EOF
<?xml version="1.0" encoding="UTF-8"?>\n
<rss version="2.0">\n
<channel>\n
    <title>La Corneta</title>\n
    <link>http://www.los40.com.mx/lacorneta/</link>\n
    <description>Fan RSS suscription</description>\n
    <language>es-mx</language>
EOF

last10=$(ls -lat *m4a|awk '{print $9}'|head -n10)

for i in $last10;do
    title="La ${i%%.m4a}"
    fileurl="http://maop.gulegro.org/corneta/$i"
    link="$fileurl"
    guid="$fileurl"
    tmp="${i%%.m4a}" #extrae corneta.YYYY-MM-DD
    date="${tmp##*.}" #extrae YYYY-MM-DD
    timestamp="$(date -d $date +%s)"
    timestamp=$(($timestamp+13*3600))
    pubdate="$(date -d @$timestamp +'%a, %d %b %Y %H:%M:%S %z')"
    desc="La corneta $date | Archivo: $fileurl"

    RSS="$RSS\n<item>\n  <title>$title</title>\n  <description>$desc</description>\n  <link>$link</link>\n  <pubDate>$pubdate</pubDate>\n  <guid>$guid</guid>\n  <enclosure url='$fileurl' type='audio/mp4'/>\n</item>"
done

RSS="${RSS}\n</channel></rss>"

echo -e $RSS > corneta.xml