【Mac】tar 打包指定目录并排除某些目录或文件

如题，bash脚本如下：

#!/bin/bash

DIR=$1			# 要打包的目标目录

# 排除的目录列表
if [ "$1" = "retail" ]; then
	array=(logs lib target .idea .mvn)
elif [ "$1" = "manager" ]; then
	array=(.idea update data/log data/runtime simplewind public/static/ui/lib public/static/js)
	#array=(.idea update data/log data/runtime)
else
	echo "Usage: sh tar.sh "
	exit
fi

excludes=
for item in ${array[@]}
do
	excludes="$excludes --exclude $DIR/$item"
done

# 打包时排除指定目录
tar $excludes -zcf $DIR.tar.gz $DIR

使用时: sh tar.sh targetDir