Selector (-SEL)

Use the Selector adapter command (-SEL) to specify a valid message selector expression. The value is a valid selector expression. Since this might contain spaces and single quotes, the value should be surrounded by double quotes in order to not confuse the parser.

This is an optional command. The default is no selector that implies select all.

-SEL "sel_expression"
Specify the selector expression being used.

For example, to specify to selectively process all messages whose application-specific property is Age minus 20 greater than 4 as the selector expression:

-SEL "Age - 20 > 4"