Added example script flac2mp3 that can be used recursively on a flac collection to convert it to mp3.

flac2mp3.sh

@@ -0,0 +1,94 @@
+#!/usr/bin/env bash
+
+INPUT="$1"
+
+METATAGS="--export-tags-to="
+LAMEOPTS=""
+ERROR_STATUS="0"
+
+function usage () {
+
+	echo 
+	echo "Usage: $0 <flac file name>"
+	echo
+	exit 1
+}
+
+function error () {
+
+	ERROR="$1"
+	MSG="$2"
+
+	echo "Error: $MSG"
+	exit 1
+}
+
+
+if [ -z "$INPUT" ]
+then
+	usage
+fi
+
+if [ ! -e "$INPUT" ]
+then
+	echo "File $INPUT does not exist!"
+	exit 1
+fi
+
+FILETYPE="`file -b "$INPUT" | awk '{ print $1 }'`"
+if [ ! "$FILETYPE" == "FLAC" ]
+then
+	echo "File $FILE is not a flac file..."
+	exit 0
+fi
+
+checkvar () {
+
+	VAR="$1"
+
+	if [ -z "$VAR" ] || [ "$VAR" == "" ] 
+	then
+		echo "Unknown"
+	else
+		echo "$VAR"
+	fi
+}
+
+
+METATAGS="TITLE ARTIST ALBUM GENRE COMPOSER CONDUCTOR ENSEMBLE TRACKNUMBER DATE ALBUM ARTIST DISCNUMBER DISC"
+
+function convert () {
+
+	FILE="$1"
+	META="$FILE.meta"
+	MP3FILE="`echo ${FILE%flac}mp3`"
+	DIR="`dirname "$FILE"`"
+
+	metaflac --export-tags-to="$META" "$FILE"
+
+	ARTIST="`metaflac "$FILE" --show-tag=ARTIST | sed s/.*=//g`"
+    	TITLE="`metaflac "$FILE" --show-tag=TITLE | sed s/.*=//g`"
+    	ALBUM="`metaflac "$FILE" --show-tag=ALBUM | sed s/.*=//g`"
+    	GENRE="`metaflac "$FILE" --show-tag=GENRE | sed s/.*=//g`"
+    	TRACKNUMBER="`metaflac "$FILE" --show-tag=TRACKNUMBER | sed s/.*=//g`"
+
+	for x in $METATAGS
+	do
+		declare $x="`grep "$x" "$META" | cut -d "=" -f 2`"
+
+		VAR=$(eval echo " \$$x")
+		VAR="`checkvar $VAR`"
+	done
+
+
+	flac -s -c -d "$FILE" | lame --tt "$TITLE" --tn "$TRACKNUMBER"  --tg "$GENRE"  --ty "$DATE"  --ta "$ARTIST" --tl "$ALBUM"  --ty "$YEAR"  --preset insane - "$MP3FILE"
+	ERROR_STATUS="$?"
+	if [ -e "$META" ]
+	then
+		rm "$META"
+	fi
+}
+
+convert "$INPUT"
+
+exit "$ERROR_STATUS"