s3-cat

s3-cat is a simple command line utility that lets you search many S3 files quickly.

gem install s3_cat

$ s3-cat s3://my_s3_bucket/directory/path/ | grep "searched pattern"

s3-cat prints content of all the files within directory/path/ to standard output. It can be later processed with any other tool.

The gem is available as open source under the terms of the MIT License.