Regular expressions are supported with File Watcher jobs when the System Agent is at least at release: R11.3 SP1 CUMULATIVE 2
For example on Linux, patch RO55416 ( LNX- X86 CA WA AGENT R11.3 SP1 CUMULATIVE 2 ) has to be installed (or higher patch number because there are cumulative patches
A typical Job might be:
insert_job: TEST_FW1 job_type: FW
machine: machine1
owner: autosys
permission: gx,wx,mx
date_conditions: 0
description: "FW test with regular expressions"
alarm_if_fail: 1
watch_file: "/apps/corgl/corgl_cs1/cs1/data1/fic/???_C[0-9,A-L,N-Z][0-9,A-Z]_*"
watch_interval: 60