Purpose of storing environment variables
The support for this script file provides a means to customize your PATROL environment without modifying the scripts provided by PATROL.
Installing PATROL on top of an existing implementation will replace many files (PATROL, PATROLAgent, emcons, patrolrc.sh, and others). Any customizations made to these script files will be lost. By making customizations to certain user-specific files, future installations will not overwrite your modifications.