Introduction

S3cmd is a command line tool for uploading, retrieving and managing data in Amazon S3 and other Cloud Storage Service Providers that use the S3 protocol

Requirements

• Ubuntu server
• GnuPG
• Amazon AWS account
• Amazon IAM service user
• Amazon S3 bucket

Installation

Install the package with aptitude.

sudo apt-get install s3cmd

Configure s3cmd.

s3cmd --configure

Enter your Amazon AWS credentials.

Access Key: [your access key]
Secret Key: [your secret key]

Enter an encryption passwort for secure transmissions.

Encryption password: [secure password]

Answert the next prompts as showed below.

Path To GPG programm: [enter]
Use HTTPS protocol [No]: [enter]
HTTP Proxy server name: [depends on your network environment]
Test access with supplied credentials: Y

If you'll get the following message.

Error: Test failed: 4103 (AccessDenied): Access Denied

Try my policy.

{
  "Statement": [
    {
      "Action": [
        "s3:ListAllMyBuckets"
      ],
      "Effect": "Allow",
      "Resource": "arn:aws:s3:::*"
    },
    {
      "Action": [ 
          "s3:ListBucket", 
          "s3:PutObject",
          "s3:GetObject"
      ],
      "Effect": "Allow",
      "Resource": [
          "arn:aws:s3:::[bucket name]", 
          "arn:aws:s3:::[bucket name]/*"
      ]
    }
  ]
}

Source

s3cmd website