The list below contains some highly valuable logmon docs/articles and references.
Overview of Nimsoft (UIM) logmon (Guide and Examples)
https://support.ca.com/us/knowledge-base-articles.TEC000003270.html
https://search.ca.com/assets/SiteAssets/TEC000003270_External/cnvOverviewofNimsoftlogmon.pdf
logmon Hints and Examples
https://docops.ca.com/ca-unified-infrastructure-management-probes/ga/en/alphabetical-probe-articles/logmon-log-monitoring/logmon-hints-and-examples
logmon Use Case Examples
https://docops.ca.com/ca-unified-infrastructure-management-probes/ga/en/alphabetical-probe-articles/logmon-log-monitoring/logmon-use-case-examples
How to specify and use wildcards/regex for the logmon probe target file field
https://support.ca.com/us/knowledge-base-articles.TEC1611974.html
How to configure logmon Watcher for a certain string
https://support.ca.com/us/knowledge-base-articles.TEC1855925.html
Can we monitor logs where logfile extension is based on the date and it is keeps changing everyday using logmon probe
https://support.ca.com/us/knowledge-base-articles.TEC1709469.html
How to use variables in logmon
https://support.ca.com/us/knowledge-base-articles.TEC1343352.html
Use logmon to Collect QoS Data
https://support.ca.com/us/knowledge-base-articles.TEC000003123.html
logmon - How to monitor only first/last x lines
https://support.ca.com/us/knowledge-base-articles.TEC1030315.html
logmon probe - maximum length of a line
https://support.ca.com/us/knowledge-base-articles.TEC000005005.html
Clear alarm sent from logmon does not clear the previous alarm
https://support.ca.com/us/knowledge-base-articles.TEC000001918.html
Using Logmon to Capture Output of Netstat Command and Alarm if Port is Not Found
https://support.ca.com/us/knowledge-base-articles.TEC1466796.html
How to configure the logmon probe in Unified Infrastructure Management to generate alarms based on a threshold
https://support.ca.com/us/knowledge-base-articles.TEC1711726.html
What is the largest logfile that can be monitored by the logmon probe?
https://support.ca.com/us/knowledge-base-articles.TEC000001463.html
How to create logmon Format Rules
https://docops.ca.com/ca-unified-infrastructure-management-probes/ga/en/alphabetical-probe-articles/logmon-log-monitoring/logmon-im-configuration/logmon-advanced-im-configuration#logmonAdvancedIMConfiguration-CreateFormatRules
How to create custom QOS for variables in logmon
https://docops.ca.com/ca-unified-infrastructure-management-probes/ga/en/alphabetical-probe-articles/logmon-log-monitoring/logmon-im-configuration
Advanced Logmon Samples
https://communities.ca.com/message/241792217
(including How to run a command)