S3: sum size of all objects in bucket/folder

s3-folder-range-size.sh

IFS=$'\n'; arr=(`for d in {0..182}; do date -d "2015-12-01 + $d days" +'%Y%m%d'; done`); for i in ${arr[@]} ; do aws s3 ls s3://bucket-name/production/dt=$i/ | tr -s " " | cut -f3 -d" " | paste -sd+ - | bc | numfmt --to=iec-i --suffix=B --padding=7 ; done

s3-folder-size.sh

# S3 list bucket / folder                          | trim whitespace | cut size field | sum numbers | format to human readable format
aws s3 ls s3://bucket-name/production/dt=20160206/ | tr -s " " | cut -f3 -d" " | paste -sd+ - | bc | numfmt --to=iec-i --suffix=B --padding=7