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: / lib / python2.7 / site-packages / awscli / examples / s3api /

Filename : get-bucket-policy.rst

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The following command retrieves the bucket policy for a bucket named ``my-bucket``::

  aws s3api get-bucket-policy --bucket my-bucket

Output::

  {
      "Policy": "{\"Version\":\"2008-10-17\",\"Statement\":[{\"Sid\":\"\",\"Effect\":\"Allow\",\"Principal\":\"*\",\"Action\":\"s3:GetObject\",\"Resource\":\"arn:aws:s3:::my-bucket/*\"},{\"Sid\":\"\",\"Effect\":\"Deny\",\"Principal\":\"*\",\"Action\":\"s3:GetObject\",\"Resource\":\"arn:aws:s3:::my-bucket/secret/*\"}]}"
  }

Get and put a bucket policy
---------------------------

The following example shows how you can download an Amazon S3 bucket policy,
make modifications to the file, and then use ``put-bucket-policy`` to
apply the modified bucket policy.  To download the bucket policy to a file,
you can run::

  aws s3api get-bucket-policy --bucket mybucket --query Policy --output text > policy.json

You can then modify the ``policy.json`` file as needed.  Finally you can apply
this modified policy back to the S3 bucket by running::

  aws s3api put-bucket-policy --bucket mybucket --policy file://policy.json