Downloading an entire S3 bucket

Question

I noticed that there doesn t seem to be an option to download an entire S3 bucket from the AWS Management Console   Is there an easy way to grab everything in one of my buckets  I was thinking about making the root folder public  using wget to grab it all  and then making it private again but I don t know if there s an easier way

User · Answer

You can use this AWS cli command to download entire S3 bucket content to local folder

aws s3 sync s3://your-bucket-name "Local Folder Path"

If you see error like this

fatal error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:581)

--no-verify-ssl (boolean)

By default, the AWS CLI uses SSL when communicating with AWS services. For each SSL connection, the AWS CLI will verify SSL certificates. This option overrides the default behavior of verifying SSL certificates. reference

Use this tag with command --no-verify-ssl

aws s3 sync s3://your-bucket-name "Local Folder Path" --no-verify-ssl

User · Answer

The answer by  Layke is good  but if you have a ton of data and don t want to wait forever  you should read  AWS CLI S3 Configuration    The following commands will tell the AWS CLI to use 1 000 threads to execute jobs  each a small file or one part of a multipart copy  and look ahead 100 000 jobs   aws configure set default s3 max concurrent requests 1000 aws configure set default s3 max queue size 100000   After running these  you can use the simple sync command   aws s3 sync s3   source-bucket source-path s3   destination-bucket destination-path   or  aws s3 sync s3   source-bucket source-path c  my local data path   On a system with CPU 4 cores and 16GB RAM  for cases like mine  3-50GB files  the sync copy speed went from about 9 5MiB s to 700 MiB s  a speed increase of 70x over the default configuration

User · Answer

To download using AWS S3 CLI   aws s3 cp s3   WholeBucket LocalFolder --recursive aws s3 cp s3   Bucket Folder LocalFolder --recursive   To download using code  use the AWS SDK   To download using GUI  use Cyberduck

User · Answer

When in Windows  my preferred GUI tool for this is Cloudberry Explorer for S3   http   www cloudberrylab com free-amazon-s3-explorer-cloudfront-IAM aspx  Has a fairly polished file explorer  ftp-like interface

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You can do this with https   github com minio mc    mc cp -r https   s3-us-west-2 amazonaws com bucketName  localdir   mc also supports sessions  resumable downloads  uploads and many more  mc supports Linux  OS X and Windows operating systems  Written in Golang and released under Apache Version 2 0

User · Answer

aws sync is the perfect solution  It does not do a two way   it is a one way from source to destination  Also  if you have lots of items in bucket it will be a good idea to create s3 endpoint first so that download happens faster  because download does not happen via internet but via intranet  and no charges

User · Answer

I ve done a bit of development for S3 and I have not found a simple way to download a whole bucket   If you want to code in Java the jets3t lib is easy to use to create a list of buckets and iterate over that list to download them   First  get a public private key set from the AWS management consule so you can create an S3service object   AWSCredentials awsCredentials   new AWSCredentials YourAccessKey  YourAwsSecretKey   s3Service   new RestS3Service awsCredentials     Then  get an array of your buckets objects   S3Object   objects   s3Service listObjects YourBucketNameString     Finally  iterate over that array to download the objects one at a time with   S3Object obj   s3Service getObject bucket  fileName               file   obj getDataInputStream      I put the connection code in a threadsafe singleton  The necessary try catch syntax has been omitted for obvious reasons    If you d rather code in Python you could use Boto instead    After looking around BucketExplorer   Downloading the whole bucket  may do what you want

User · Answer

Use this command with the AWS CLI   aws s3 cp s3   bucketname   --recursive

User · Answer

As  layke said  it is the best practice to download the file from the S3 cli it is a safe and secure  But in some cases  people need to use wget to download the file and here is the solution   aws s3 presign s3    lt your bucket name  gt    This will presign will get you temporary public URL which you can use to download content from S3 using the presign url  in your case using wget or any other download client

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You ve many options to do that  but the best one is using the AWS CLI   Here s a walk-through    Download and install AWS CLI in your machine    Install the AWS CLI using the MSI Installer  Windows   Install the AWS CLI using the Bundled Installer for Linux  OS X  or Unix   Configure AWS CLI     Make sure you input valid access and secret keys  which you received when you created the account  Sync the S3 bucket using   aws s3 sync s3   yourbucket  local path   In the above command  replace the following fields    yourbucket    your S3 bucket that you want to download   local path    path in your local system where you want to download all the files

User · Answer

If the bucket is quite big there is a command called s4cmd which makes parallel connections and improves the download time   To install it on Debian like  apt install s4cmd   If you have pip   pip install s4cmd   It will read the    s3cfg file if present  if not install s3cmd and run s3cmd --configure  or you can specify --access-key ACCESS KEY --secret-key SECRET KEY on the command   The cli is similar to s3cmd  In your case a sync is recommended as you can cancel the download and start it again without having to re-downloaded the files   s4cmd  --access-key ACCESS KEY --secret-key SECRET KEY  sync s3    lt your-bucket gt   some local dir   Be careful if you download a lot of data   1TB  this may impact your bill  calculate first which will be the cost

User · Answer

Here is some stuff to download all buckets  list them  list their contents         connection string     private static void dBConnection         app setAwsCredentials CONST getAccessKey    CONST getSecretKey         conn   new AmazonS3Client app getAwsCredentials         app setListOfBuckets conn listBuckets         System out println CONST getConnectionSuccessfullMessage                private static void downloadBucket          do           for  S3ObjectSummary objectSummary   app getS3Object   getObjectSummaries                  app setBucketKey objectSummary getKey                 app setBucketName objectSummary getBucketName                 if objectSummary getKey   contains CONST getDesiredKey                        DOWNLOAD                 try                                        s3Client   new AmazonS3Client new ProfileCredentialsProvider                         s3Client getObject                              new GetObjectRequest app getBucketName   app getBucketKey                                 new File app getDownloadedBucket                                                     catch  IOException e                        e printStackTrace                                       do                                        if app getBackUpExist      true                           System out println  Converting back up file                            app setCurrentPacsId objectSummary getKey                             passIn   app getDataBaseFile                            CONVERT  new DataConversion passIn                           System out println CONST getFileDownloadedMessage                                                             while app getObjectExist    true                    if app getObjectExist     false                                        app setNoObjectFound true                                                     app setS3Object conn listNextBatchOfObjects app getS3Object                 while  app getS3Object   isTruncated          ----------------------------Extension Methods-------------------------------------       Unzip bucket after download  public static void unzipBucket   throws IOException       unzip   new UnZipBuckets        unzip unZipIt app getDownloadedBucket         System out println CONST getFileUnzippedMessage          list all S3 buckets public static void listAllBuckets        for  Bucket bucket   app getListOfBuckets              String bucketName   bucket getName            System out println bucketName     t    StringUtils fromDate bucket getCreationDate                 Get the contents from the auto back up bucket public static void listAllBucketContents             do           for  S3ObjectSummary objectSummary   app getS3Object   getObjectSummaries                  if objectSummary getKey   contains CONST getDesiredKey                      System out println objectSummary getKey       t    objectSummary getSize       t    StringUtils fromDate objectSummary getLastModified                      app setBackUpCount app getBackUpCount     1                                      app setS3Object conn listNextBatchOfObjects app getS3Object                 while  app getS3Object   isTruncated         System out println  There are a total of       app getBackUpCount       buckets

User · Answer

If you use Visual Studio  download  AWS Toolkit for Visual Studio    After installed  go to Visual Studio - AWS Explorer - S3 - Your bucket - Double click  In the window you will be able to select all files  Right click and download files

User · Answer

AWS CLI is the best option to download an entire S3 bucket locally    Install AWS CLI  Configure AWS CLI for using default security credentials and default AWS Region  To download the entire S3 bucket use command  aws s3 sync s3   yourbucketname  localpath   Reference to use AWS cli for different AWS services  https   docs aws amazon com cli latest reference

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You can use s3cmd to download your bucket   s3cmd --configure s3cmd sync s3   bucketnamehere folder  destination folder     There is another tool you can use called rclone  This is a code sample in the Rclone documentation   rclone sync  home local directory remote bucket

User · Answer

You just need to pass --recursive  amp  --include      aws --region    BUCKET REGION   s3 cp s3     BUCKET   BUCKET PATH     LOCAL PATH  tmp --recursive --include     2 gt  amp 1

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I ve used a few different methods to copy Amazon S3 data to a local machine  including s3cmd  and by far the easiest is Cyberduck     All you need to do is enter your Amazon credentials and use the simple interface to download  upload  sync any of your buckets  folders or files

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To add another GUI option  we use WinSCP s S3 functionality   It s very easy to connect  only requiring your access key and secret key in the UI   You can then browse and download whatever files you require from any accessible buckets  including recursive downloads of nested folders     Since it can be a challenge to clear new software through security and WinSCP is fairly prevalent  it can be really beneficial to just use it rather than try to install a more specialized utility

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As Neel Bhaat has explained in this blog  there are many different tools that can be used for this purpose  Some are AWS provided  where most are third party tools  All these tools require you to save your AWS account key and secret in the tool itself  Be very cautious when using third party tools  as the credentials you save in might cost you  your entire worth and drop you dead   Therefore  I always recommend using the AWS CLI for this purpose  You can simply install this from this link  Next  run the following command and save your key  secret values in AWS CLI   aws configure   And use the following command to sync your AWS S3 Bucket to your local machine   The local machine should have AWS CLI installed   aws s3 sync  lt source gt   lt destination gt    Examples   1  For AWS S3 to Local Storage  aws s3 sync  lt S3Uri gt   lt LocalPath gt    2  From Local Storage to AWS S3  aws s3 sync  lt LocalPath gt   lt S3Uri gt    3  From AWS s3 bucket to another bucket  aws s3 sync  lt S3Uri gt   lt S3Uri gt

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AWS CLI  See the  AWS CLI Command Reference  for more information   AWS recently released their Command Line Tools  which work much like boto and can be installed using   sudo easy install awscli   or   sudo pip install awscli   Once installed  you can then simply run   aws s3 sync s3    lt source bucket gt   lt local destination gt    For example   aws s3 sync s3   mybucket     will download all the objects in mybucket to the current directory   And will output   download  s3   mybucket test txt to test txt download  s3   mybucket test2 txt to test2 txt   This will download all of your files using a one-way sync  It will not delete any existing files in your current directory unless you specify  --delete  and it won t change or delete any files on S3   You can also do S3 bucket to S3 bucket  or local to S3 bucket sync    Check out the documentation and other examples   Whereas the above example is how to download a full bucket  you can also download a folder recursively by performing  aws s3 cp s3   BUCKETNAME PATH TO FOLDER LocalFolderName --recursive   This will instruct the CLI to download all files and folder keys recursively within the PATH TO FOLDER directory within the BUCKETNAME bucket

User · Answer

Another option that could help some OS X users is Transmit    It s an FTP program that also let you connect to your S3 files  And  it has an option to mount any FTP or S3 storage as a folder in the Finder  but it s only for a limited time

User · Answer

Windows User need to download S3EXPLORER from this link which also has installation instructions  - http   s3browser com download aspx Then provide you AWS credentials like secretkey  accesskey and region to the s3explorer  this link contains configuration instruction for s3explorer Copy Paste Link in brower  s3browser com s3browser-first-run aspx Now your all s3 buckets would be visible on left panel of s3explorer  Simply select the bucket  and click on Buckets menu on top left corner  then select Download all files to option from the menu  Below is the screenshot for the same    Bucket Selection Screen   Then browse a folder to download the bucket at a particular place Click on OK and your download would begin

User · Answer

For Windows  S3 Browser is the easiest way I have found  It is excellent software  and it is free for non-commercial use

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AWS sdk API will only best option for upload entire folder and repo to s3 and download entire bucket of s3 to locally   For uploading whole folder to s3   aws s3 sync   s3   BucketName   for download whole s3 bucket locally  aws s3 sync s3   BucketName      you can also assign path As like BucketName Path for particular folder in s3 to download

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If you only want to download the bucket from AWS  first install the AWS CLI in your machine  In terminal change the directory to where you want to download the files and run this command   aws s3 sync s3   bucket-name     If you also want to sync the both local and s3 directories  in case you added some files in local folder   run this command   aws s3 sync   s3   bucket-name

User · Answer

Try this command   aws s3 sync yourBucketnameDirectory  yourLocalDirectory  For example  if your bucket name is myBucket and local directory is c  local  then   aws s3 sync s3   myBucket  c  local  For more informations about awscli check this aws cli installation

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You may simple get it with s3cmd command   s3cmd get --recursive --continue s3   test-bucket local-directory

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If you have only files there  no subdirectories  a quick solution is to select all the files  click on the first  Shift click on the last  and hit Enter or right click and select Open  For most of the data files this will download them straight to your computer

User · Answer

If you use Firefox with S3Fox  that DOES let you select all files  shift-select first and last  and rightclick and download all    I ve done it with 500  files w o problem

User · Answer

It s always better to use awscli for downloading   uploading files to s3  Sync will help you to resume without any hassle  aws s3 sync s3   bucketname

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