UC_EX_PATH_CACHE parameter is duplicated with different descriptions in the configuration file of the unix agent. (21.X) as well as the documentation link below
Here's an excerpt from the agent.ini file:
; UC_EX_PATH_CACHE: Directory is used to store client-wide resources.
; UC_EX_PATH_CACHE: Path to the cache directory for storage resource files
Release : 21.0.5
CA Automic Workload Automation
As confirmed by our engineering team, the duplicate configuration / documentation for the UC_EX_PATH_CACHE parameter will be corrected in a future release.