github.com/honeycombio/honeytail@v1.9.0/parsers/regex/README.md (about) 1 Golang `regexp` package uses the [RE2 syntax](https://github.com/google/re2/wiki/Syntax). 2 3 Example CLI usage (from honeytail root) 4 ``` 5 honeytail -p regex -k $HONEYTAIL_WRITEKEY \ 6 -f some/path/system.log \ 7 --dataset 'MY_TEST_DATASET' \ 8 --backfill \ 9 --regex.line_regex="(?P<time>\d{2}:\d{2}:\d{2}) (?P<field1>\w+)" \ 10 --regex.line_regex="(?P<foo>\w+)" \ 11 --regex.timefield="time" \ 12 --regex.time_format="%H:%M:%S" 13 ```