s3cmd

Configure s3cmd (interactive setup)

$ s3cmd --configure

$ s3cmd ls

$ s3cmd ls s3://[bucket_name]

$ s3cmd mb s3://[bucket_name]

$ s3cmd put [file] s3://[bucket_name]/

$ s3cmd get s3://[bucket_name]/[file]

$ s3cmd sync [local_dir]/ s3://[bucket_name]/[path]/

$ s3cmd del s3://[bucket_name]/[file]

$ s3cmd rb s3://[bucket_name]

s3cmd [options] command [parameters]

s3cmd is a command-line tool for managing Amazon S3 and S3-compatible storage services. It provides a familiar interface for uploading, downloading, and managing files in cloud object storage.
Configuration is stored in ~/.s3cfg and includes access keys, encryption settings, and default options. Run --configure for interactive setup.
The sync command is particularly powerful for backups, mirroring directories to S3 while only transferring changed files. With --delete-removed, it creates exact mirrors.
S3cmd supports server-side encryption, multipart uploads for large files, and can work with S3-compatible services like MinIO, DigitalOcean Spaces, and Wasabi.

ls [s3://bucket]

List buckets or objects

Make bucket

Remove bucket

Upload file

Download file

Delete object

Sync directories (local to S3 or S3 to local)

Copy object

Move object

Get info on bucket or object

Disk usage

Interactive configuration

Recursive operation

Delete files not in source during sync

Show what would be done

Make uploaded files public

Make uploaded files private

Exclude files matching pattern

Include files matching pattern

AWS credentials in ~/.s3cfg should have restricted permissions (600). Never commit credentials to version control.
Sync operations compare by size and modification time by default. Use --check-md5 for checksum verification at the cost of speed.
Large file uploads automatically use multipart upload. For very large files, increase --multipart-chunk-size-mb.
Bucket names must be globally unique across all AWS accounts and follow DNS naming conventions.

aws(1), rclone(1), gsutil(1), mc(1)