How I convert my FLAC to mp3 in linux

flac2mp3.sh

#!/bin/bash

# Converts all flac files in a folder into mp3s, plus the id3 tag
# Requires flac, metaflac, lame, id3v2

for a in *
do
  # Check the file is a flac file
  if [[ "$a" =~ flac$ ]]
  then
    # Name of outfile
    OUTF=`echo "$a" | sed s/\.flac/.mp3/g`
    echo "$a => $OUTF"

    # Capture all the FLAC metadata
    ARTIST=`metaflac "$a" --show-tag=ARTIST | sed s/.*=//g`
    TITLE=`metaflac "$a" --show-tag=TITLE | sed s/.*=//g`
    ALBUM=`metaflac "$a" --show-tag=ALBUM | sed s/.*=//g`
    GENRE=`metaflac "$a" --show-tag=GENRE | sed s/.*=//g`
    TRACKNUMBER=`metaflac "$a" --show-tag=TRACKNUMBER | sed s/.*=//g`

    # Convert the audio data from FLAC to MP3
    flac -c -d "$a" | lame -m j -b 256 -s 44.1 - "$OUTF"

    # Tag the resulting MP3 with the captured metadata
    id3v2 -t "$TITLE" -T "$TRACKNUMBER" -a "$ARTIST" -A "$ALBUM" -g "$GENRE" "$OUTF"
  fi
done