Use SPLIT() to separate the pathnames, use SUBSTR to separate the date field and create a reald date, then use the DATEMATH() UDF to calculate date difference. Pseudo-codecode:
$a=split('c:\program files\common files\Symantec shared\virusdefs\definfo.dat 20030326.002','\')
$date=$a[ubound($a)]
$date=split($date,'.')[0]
$year=left($date,4)
$month=substr($date,5,2)
$day=right($date,2)
$date=$year+'/'+$month+'/'+$day
$datediff=datemath($date,@DATE)
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There are two types of vessels, submarines and targets.
