s5cmd
https://github.com/peak/s5cmd
AWS
export AWS_ACCESS_KEY_ID='xxx'
export AWS_SECRET_ACCESS_KEY='yyy'
export AWS_PROFILE=default
export AWS_REGION=eu-central-1
s5cmd ls s3://my-bucket/
Custom endpoint
export AWS_ACCESS_KEY_ID='<your-access-key-id>'
export AWS_SECRET_ACCESS_KEY='<your-secret-access-key>'
export S3_ENDPOINT_URL=https://[URL]
s5cmd ls s3://my-bucket/