Flac to MP3

flac2mp3.sh

#!/usr/local/bin/bash

if test $# -ne 2; then
 echo "Script needs for 2 arguments but actual $#!"; exit 12; fi

SRC="$1"
DST="$2"

if [[ ! -d "$SRC" ]]; then echo "SRC: $SRC is not a dir!"; exit 1; fi
if [[ ! -d "$DST" ]]; then echo "DST: $DST is not a dir!"; exit 1; fi

issuers=()
index=-1
while read it; do
 index=$((index+1))
 if [[ ! -f "$it" ]]; then continue; fi
 if [[ ! -s "$it" ]]; then continue; fi
 issuers+=("$it")
done <<< "$(find "$SRC" -maxdepth 1)"

sorted=()
while read it; do
 sorted+=("$it")
done <<< "$(printf '%s\n' "${issuers[@]}"|sort)"

index=-1
for ((i = 0; i < ${#sorted[@]}; i++)); do
 index=$((index+1))
 it="${sorted[$i]}"
 BN="$(basename "$it")"
 if [[ "$BN" =~ ^.+\.flac$ ]]; then
  echo "$it"
 else continue; fi
 dst="$DST/${BN%.flac}.mp3"
 if [[ -e "$dst" ]]; then
  echo "Dst exists!"; exit 1; fi
 ~/.local/bin/ffmpeg -i "$it" -ab 320k "$dst"
 if test $? != 0; then
  echo "$index] \"$it\" FFMPEG error!"; exit 1; fi
done