This library is a small utility to help you create pattern to handle multiline.

INFO: documentation https://www.elastic.co/guide/en/beats/filebeat/current/multiline-examples.html

# For Linux
make build.linux

# For MacOS
make build.darwin

examples/elastic-1.log provides some stack trace to validate against your pattern

dist/filebeat-helper-linux -logfile examples/elastic-1.log -pattern '^\[\d{4}-\d{2}-\d{2}[^]]*\]' -negate