convert wav files to flac

convert_flac.sh

#!/bin/bash

# loop through files in currently active directory
for f in *.wav
    do
        # converts wav files to flac using sox
        sox "$f" "${f%.*}".flac
        shopt -s nullglob
        #check for flac files in current directory
        if [[ -n $(echo *.flac) ]]; then
            # check if flac directory exists
            if [ ! -d "flac" ]; then
                # creates flac direcotry if it doesn't already exist
                mkdir flac
            fi
            # move all flac files to the flac directory
            mv *.flac flac/
        fi
    done