# Copy local file to S3$ aws s3 cp my_file.txt s3://my_bucket/my_prefix
# Copy file from S3 to local$ aws s3 cp s3://my_bucket/my_prefix my_file.txt
Syncing Files
Syncing can copy a group of files which all share a similar prefix (or part of a prefix), so you can treat the prefixes almost like directories in this case.
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$ aws s3 sync <source> <destination>
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# Sync all objects with the prefix "my_prefix/" to the current directory $ aws s3 sync s3://my_bucket/my_prefix/ ./
Speeding Up Copy And Sync Commands
You can speed up copy and sync transfers (especially when small files are involved) by running the following commands:
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$ aws configure set default.s3.max_concurrent_requests 100
$ aws configure set default.s3.max_queue_size 10000
This modifies the default profile. It will add the below to the .aws/config file: