Slice audio file into equal sized parts

slice.sh

#!/bin/sh

for LINE in *.wav
do
	echo "$LINE"
	mkdir -p -- "_$LINE/4"
	mkdir -p -- "_$LINE/16"
	mkdir -p -- "_$LINE/64"
	LENGTH=$(soxi -D "$LINE")
	INTERVAL=$(echo "$LENGTH/4" | bc -l)

	sox "LINE" "_$LINE/4/$LINE" "trim" "0" "$INTERVAL" : newfile : restart
	INTERVAL=$(echo "$LENGTH/16" | bc -l)
	sox "$LINE" "_$LINE/16/$LINE" "trim" "0" "$INTERVAL" : newfile : restart
	INTERVAL=$(echo "$LENGTH/64" | bc -l)
	sox "$LINE" "_$LINE/64/$LINE" "trim" "0" "$INTERVAL" : newfile : restart
done