Logpp is a tool for preprocessing event logs and feeding relevant information to other programs for storing or in-depth analysis. During its work, logpp reads lines appended to input files (like tail(1) in -f mode), matches the lines with patterns (e.g., regular expressions), converts matching lines according to given templates, and writes the results to given destinations. Logpp supports multi-line matching and several types of output destinations like regular files, FIFOs, external programs, and the system logger.Therefore, logpp can act as a filter in front of the more complex event log analysis system and increase the system's performance by weeding out irrelevant log data; it can work as a syslog gateway between the system logger and the application that doesn't use syslog(3); it can convert multiline log messages to shorter single line messages, and accomplish other log pre-processing tasks.
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