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Franck Dernoncourt
Asked: 2024-04-05 03:46:43 +0800 CST

How can I check if a transfer initiated with `aws s3 cp` was 100% successful?

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I've uploaded a large number of files and folders to an AWS S3 bucket via:

aws s3 cp . s3://mybucket --recursive

How can I check if the transfer was 100% successful?

amazon-s3

2 Answers

  1. One can use --only-show-errors: if the transfer is 100% successful, then nothing will be output.

    Documentation:

    --only-show-errors (boolean) Only errors and warnings are displayed. All other output is suppressed.

    Example:

    aws s3 cp . s3://mybucket --recursive --only-show-errors
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  2. Best Answer

    One can use sync:

    aws s3 sync . s3://mybucket

    It only uploads the files that are missing in the S3 bucket. No need to add --recursive since sync is always recursive.

    (Thanks Reddit user p0093 for mentioning the command.)

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