How Do I dowload a file from Amazon S3?

2024 3 18
1 个回答
更新时间：2024 3 18
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Hello,
I am trying to use matlab to download a .gz file from Amazon s3. I have the AWS creditials set.
% Set AWS credentials
YOUR_AWS_ACCESS_KEY_ID = 'test1';
YOUR_AWS_SECRET_ACCESS_KEY = 'test2';
setenv('AWS_ACCESS_KEY_ID', YOUR_AWS_ACCESS_KEY_ID);
setenv('AWS_SECRET_ACCESS_KEY', YOUR_AWS_SECRET_ACCESS_KEY);
setenv('AWS_REGION', 'us-west-2');
I have my path s3 path:
rawdataPath = 's3://companya/Frontier/FieldData/file.csv.gz'
I am wondering how I can download this file.

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回答（1 个）

Voss
Voss 2024-3-18

0 个投票

Once you have your environment set up, you should be able to treat files on S3 as you would treat any local file, e.g.,
rawdataPath = 's3://companya/Frontier/FieldData/file.csv.gz'
localDir = 'C:\Downloads';
% copy .gz to local directory:
copyfile(rawdataPath,localDir)
% or unzip .gz to local directory:
gunzip(rawdataPath,localDir)

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Matthew
Matthew 2024-3-18
when trying the copyfile() I get a low level error has occured.
Error using copyfile
A low level error has occurred at
's3://companya/Frontier/FieldData/file.csv.gz'.
Error in sc_downloadGZFiles (line 19)
copyfile(rawdataPath,Datapath);
When trying the gunzip() I get
Error using matlab.io.internal.archive.checkFilename>downloadArchiveFile
Function GUNZIP was unable to read URL
Voss
Voss 2024-3-18
Check that your AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY are set correctly.

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Matthew
Matthew
2024-3-18

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Voss
Voss
2024-3-18

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