Script inspired by logster that takes a log file and sends all output periodically to a Graylog2 server via running on cron.

Usage: graylogtail [options] logfile

Tail a log file and filter each line to generate log lines that can be sent to
gralog2.

Options:
  -h, --help            show this help message and exit
  -s STATE_DIR, --state-dir=STATE_DIR
                        Where to store the logtail state file.  Default
                        location /var/run
  -d, --dry-run         Parse the log file but send stats to standard output.
  --graylog-host=GRAYLOG_HOST
                        Hostname for Graylog, e.g. graylog.example.com
  --graylog-port=GRAYLOG_PORT
                        Hostname for Graylog, e.g. graylog.example.com
  --facility=FACILITY   Facility for filtering messages in graylog
  -D, --debug           Provide more verbose logging for debugging.
  --level=LEVEL         Specify the level messages should be logged at.
                        Default to info
  -x, --exclude-string="excluded string"
		    if the line(=message) contains string same as in variable,
		    line will not be sent to graylog server