delete aws s3 files in a bucket older than specified days

deletes3files.sh

#!/bin/bash

# Usage: ./deletes3files.sh "bucketname" "30 days"

olderThan=$(date -d "-$2" +%s)

s3cmd ls s3://$1 | while read -r line;
  do
    createDate=$(echo $line|awk {'print $1" "$2'})
    createDate=$(date -d "$createDate" +%s)
    
    if [[ $createDate -lt $olderThan ]]
      then 
        fileName=`echo $line|awk {'print $4'}`
        echo $fileName
        if [[ $fileName != "" ]]
          then
            s3cmd del "$fileName"
        fi
    fi
  done;