Click the icon next to
Post Action
on the file listener task wizard.
The
Add Parameters
window appears.

Select the required variable from the
System Variables
column, and click . The selected system variable appears on the
Expression
column. Repeat this procedure to select multiple system variables.
When using a System variable within a task, it should be formatted as
${systemvariablename}
.
The following table describes the system variables:
System Variables	Description	Expression
BadFileDir *	Directory for reject files. It cannot include the following special characters: * ? < > " | ,	${$PMBadFileDir}
CacheFileDir *	The location for the cache file.	${$PMCacheDir}
Date **	The current date in ISO (yyyy-MM-dd) format.	${system.date}
Day **	The day of week	${system.day}
ExtProcDir *	Directory for external procedures. It cannot include the following special characters: * ? < > " | ,	${$PMExtProcDir}
LookupFileDir *	Directory for lookup files. It cannot include the following special characters: * ? < > " | ,	${$PMLookupFileDir}
Month **	Numerical month	${system.month}
RootDir	Root directory accessible by the node. This is the root directory for other service process variables. It cannot include the following special characters: * ? < > " | ,	${$PMRootDir}
SessionLogDir *	Directory for session logs. It cannot include the following special characters: * ? < > " | ,	${$PMSessionLogDir}
StorageDir *	Directory for run-time files. Workflow recovery files save to the $PMStorageDir configured in the PowerCenter Integration Service properties. Session recovery files save to the $PMStorageDir configured in the operating system profile. It cannot include the following special characters: * ? < > " | ,	${$PMStorageDir}
TargetFileDir *	Directory for target files. It cannot include the following special characters: * ? < > " | ,	${$PMTargetFileDir}
TempDir *	Directory for temporary files. It cannot include the following special characters: * ? < > " | ,	${$PMTempDir}
WorkflowLogDir *	The location for the workflow log file.	${$PMWorkflowLogDir}
Year **	Year	${system.year}
* Values are fetched from the Data Integration Server. ** Time zone is the Secure Agent time zone.
The parameter substitution occurs when you start a task. When a file listener starts and evaluates that the previously watched location is different due to the difference in the parameter value, a delete notification is sent for the files present in the previously watched location. The notifications are not sent if you disable the delete notification option or enable the
Exclude events when the file listener is not running
option.
Click
OK
.
The expression appears in the
Folder Path
field.

Using user-defined variables to add parameters