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find . -type f -iname '*.flac' # searches from the current folder recursively for .flac audio files
| # the output (a .flac audio files with relative path from ./ ) is piped to
while read FILE; do FILENAME="${FILE%.*}"; flac -cd "$FILE" | lame -b 192 - "${FILENAME}.mp3"; done
# for each line on the list:
# FILE gets the file with .flac extension and relative path
# FILENAME gets FILE without the .flac extension
# run flac for that FILE with output piped to lame conversion to mp3 using 192Kb bitrate
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