Sensu plugin for monitoring patterns in log files

Usage: check-log-pattern.rb (options)
    -c, --crit <COUNT>               Critical if number of matches exceeds COUNT
    -f, --file <PATH>                Comma separated list of files (including globs) where pattern will be searched
        --ignore-case                Ignore case sensitive
    -i, --ignore-pattern <PATTERN>   Comma separated list of patterns to ignore
    -p, --pattern <PATTERN>          Comma separated list of patterns to search for (required)
        --print-matches              Print log lines that match patterns
    -s, --source <file>              Defines the log source (default: file) (required)
        --state-dir <PATH> (default: /var/cache/check-log-pattern)
                                     State directory
    -w, --warn <COUNT>               Warning if number of matches exceeds COUNT (default: 1)