Bash script to convert all 2nd level wav files (without extension) to 16-bit wav files

convert16.sh

#!/bin/bash

CONVERT="convert-tmp"
FILELIST=$(find . -maxdepth 2| xargs file | grep WAVE | awk -F':' '{ print $1}' | awk -F'/' '{ print $2, $3}')

while read -r line; do
 FOLDER=$(echo $line | awk '{print $1}')
 FILE=$(echo $line | awk '{print $2}')

 INFILE="$FOLDER/$FILE"
 OUTFILE="$FOLDER/$CONVERT/$FILE"
 echo "Converting $INFILE to $OUTFILE"
 if [ ! -d $FOLDER/$CONVERT ]; then
  mkdir $FOLDER/$CONVERT
 fi
 sox -t wav $INFILE -b 16 -t wav $OUTFILE && mv $OUTFILE $INFILE && rmdir $FOLDER/$CONVERT
done <<< "$FILELIST"