grok 1.20110708.1-4.3ubuntu1 (armhf binary) in ubuntu bionic

 The grok program can parse log data and program output. You can match
 any number of complex patterns on any number of inputs (processes and
 files) and have custom reactions.
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 Grok is simple software that allows you to easily parse logs and
 other files. With grok, you can turn unstructured log and event data
 into structured data.