How to use aws s3 sync from the CLI

Question

How do I use the aws s3 sync command to upload files from my local computer to S3?

Answer 1

• Basically, This command is used to sync files from a local directory to an S3 bucket or from one S3 bucket to another. The best part is it only copies new or modified files, making it more efficient.

• Before you start, Check whether AWS CLI is installed and configured with the necessary permissions to access your S3 bucket.

• The general syntax for the command looks like this:

• If you want to sync a local folder to an S3 bucket, the command will look like this:

• Replace /path/to/local/folder with your local directory path and your-bucket-name with the name of your S3 bucket.

• To sync files from an S3 bucket to your local folder, you would use:

• There are several options you can add to the sync command. For example, you might want to exclude certain files or include a dry run to see what would happen without making any changes. Here are a couple of useful options:

• --dryrun: This simulates the command without making any changes. It’s great for testing.

• --exclude: You can exclude specific files from being synced. For example, to exclude all .txt files:                

Here’s how to use this command in AWS CLI. Want a deep dive into AWS S3? Click here for the full tutorial!