Recursively list sizes of your AWS buckets using s3cmd:
scott@atlas.local ~ s3cmd du -H -r s3:// 16:19:22 3.81335246842G 51 objects s3://ssx-general-backups/ 52.0762854349G 52 objects s3://ssx-archived-client-websites/ 189.562103216G 565 objects s3://ssx-backups-production/ 664.248046875M 1 objects s3://ssx-backups-git/ 7.44284629263G 74 objects s3://ssx-backups-servers-shared/ 238.997132301M 3579 objects s3://ssx-images/ -------- 253.776662782G Total