Monitor Growth of Single Log Files

How to Monitor, Alert on & Graph the Growth of Single log files

[root@nagios-primary ~]# ./nlm logxray host:port /var/tmp/logXray autodoc /opt/apps/iptuibatch/logs/iptconflictCheck.log 1 5 filegrowth

CRITICAL: File [ /opt/apps/iptuibatch/logs/iptconflictCheck.log ]. Size Now = [ 744KB (Wed Dec 30 17:35:56 2015) ]. Size Before = [ 744KB (Wed Dec 30 17:35:55 2015) ].
[root@nagios-primary ~]# ./nlm logxray host:port /var/tmp/logXray autodoc /opt/apps/iptuibatch/logs/iptconflictCheck.log 1 5 filegrowth

OK: File [ /opt/apps/iptuibatch/logs/iptconflictCheck.log ]. Size Now = [ 752KB (752) (Wed Dec 30 17:37:55 2015) ]. Size Before = [ 744KB (Wed Dec 30 17:35:55 2015) ].
[root@nagios001 ~]# ./nlm logxray host:port /tmp/logXray,graphite,52.88.12.122:2003,typical autonda /var/log/messages 60m 'nothing-to-search-for' '.'  1 2 LogGrowthChk -ndfoundn

Other common log monitoring scenarios