scripts/rename_meurice_podcast

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#!/bin/sh
# Rename Guillaume Meurice podcast files
# Also change the title tag (2016.09.30 Title)
# http://radiofrance-podcast.net/podcast09/rss_14257.xml
# If the first arg is a directory
if [ -d "${1}" ]; then
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MEURICE_DIR="${1}"
TMP_LIST_FILE="/tmp/list_meurice_file"
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# List audio files
find "${MEURICE_DIR}" -mindepth 1 -type f -iregex '.*\.mp3' > "${TMP_LIST_FILE}"
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while IFS= read -r FILE
do
FILE_ABSOLUT_PATH="${MEURICE_DIR}/${FILE}"
# Get file information
FILE_EXT=$(echo "${FILE_ABSOLUT_PATH}" | awk -F'[.]' '{print $NF}')
# Get tag information
DATE=$(eyeD3 "${FILE_ABSOLUT_PATH}" | grep 'title' 2> /dev/null | sed 's/.*\(..\).\(..\).\(201.\).*/\3-\2-\1/')
TITLE=$(eyeD3 "${FILE_ABSOLUT_PATH}" | grep 'title' 2> /dev/null | sed 's/.*: \(.*\) \(..\).\(..\).\(201.\).*/\1/')
printf '%s\n' "date: ${DATE}"
printf '%s\n' "title: ${TITLE}"
# Correct title tag
command eyeD3 --title="${DATE} ${TITLE}" "${FILE_ABSOLUT_PATH}"
# Rename the file
mv "${FILE_ABSOLUT_PATH}" "${MEURICE_DIR}"/"${DATE}"_"${TITLE}"."${FILE_EXT}"
done < "${TMP_LIST_FILE}"
# If the first arg is a file
elif [ -f "${1}" ]; then
MEURICE_FILE="${1}"
MEURICE_DIR=$(dirname "${MEURICE_FILE}")
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# Get file information
FILE_EXT=$(echo "${MEURICE_FILE}" | awk -F'[.]' '{print $NF}')
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# Get tag information
DATE=$(eyeD3 "${MEURICE_FILE}" | grep 'title' 2> /dev/null | sed 's/.*\(..\).\(..\).\(201.\).*/\3-\2-\1/')
TITLE=$(eyeD3 "${MEURICE_FILE}" | grep 'title' 2> /dev/null | sed 's/.*: \(.*\) \(..\).\(..\).\(201.\).*/\1/')
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printf '%s\n' "date: ${DATE}"
printf '%s\n' "title: ${TITLE}"
# Correct title tag
command eyeD3 --title="${DATE} ${TITLE}" "${MEURICE_FILE}"
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# Rename the file
mv "${MEURICE_FILE}" "${MEURICE_DIR}"/"${DATE}"_"${TITLE}"."${FILE_EXT}"
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# Otherwise print an error
else
printf '%s\n' "Error with the first arg: ${1}"
exit 1
fi
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exit 0