gem build sqs-grep.gemspec
  gem install sqs-grep*.gem

  # Show all messages, delete nothing:
  sqs-grep ^ name-of-queue

  # Show only messages matching the given pattern, without deleting them:
  sqs-grep "[Ee]xception.*at line" name-of-queue

  # Show and consume (delete) all messages (somewhat like sqs-receive):
  sqs-grep --delete ^ name-of-queue

  # Show and consume (delete) only messages matching matching some pattern:
  sqs-grep --delete 1caf7fdb-e47a-46af-b8e3-4d955883a396 name-of-queue