rajesh38

# using Aws::S3 rubygem
Aws.config.update({
   credentials: Aws::Credentials.new(Rails.application.secrets.s3_access_key, Rails.application.secrets.s3_secret_key)
})
s3 = Aws::S3::Resource.new(region: '<region>')
s3.bucket('<bucket_name>').objects.each{|object| object.delete if (object.key !~ /<pattern_not_to_match>/)}