Bash: Bzip2 compress given files in directory

bzcomp.sh

#!/bin/bash
#
# bzcomp
# Bzip2 compress given files in directory
#
# Example usage: bzcomp logs/ '*.log' 4
#
# Author: Niko Heikkilä
# Version: 1.0.1
#

CWD=$1      # Working directory
RULE=$2     # String matching the filename(s)
LEVEL=$3    # Compression level {1..9}

find "$CWD" -name "$RULE" -exec bzip2 -v"$LEVEL" {} \;