本人平常开发时，爱用postman，postman支持aws v4签名认证，不支持v2。
故自己搞了一个类似postman api访问s3 server的小脚本
目前功能很简单，大家有什么建议可以告诉我，crazywuqi@163.com
Usage: ./s3bash.sh HTTP-METHOD URL [options...]
-H "k1:v1" -H "k2:v2"
-O save_http_response_body_to_file
--body-binary=localfile
--body-raw=xxx
-a access_key
-s secret_key
-e easy out
-h help
GET
s3bash.sh GET http://10.10.10.10:8888/bucket1/obj1 -O obj1
s3bash.sh GET http://bucket2.endpoint/obj2 -O obj2
PUT
s3bash.sh PUT http://localhost:8000/testbucket/aaa_obj1 --body-binary=localfile