Anyway, the command proposed in
http:#a33329967will produce
Mon Jun 28 23:30:02 2010 '/ngnprod/archive/ngnprod_
75018.arc'
Mon Jun 28 23:40:44 2010 '/ngnprod/archive/ngnprod_
75019.arc'
Tue Jun 29 00:04:24 2010 '/ngnprod/archive/ngnprod_
75021.arc'
Tue Jun 29 23:52:32 2010 '/ngnprod/archive/ngnprod_
75206.arc'
Wed Jun 30 23:52:01 2010 '/ngnprod/archive/ngnprod_
75391.arc'
Thu Jul 1 00:02:13 2010 '/ngnprod/archive/ngnprod_
75392.arc'
Thu Jul 1 23:51:42 2010 '/ngnprod/archive/ngnprod_
75553.arc'
Fri Jul 2 00:04:03 2010 '/ngnprod/archive/ngnprod_
75554.arc'
Fri Jul 2 00:16:44 2010 '/ngnprod/archive/ngnprod_
75555.arc'
Fri Jul 2 23:55:46 2010 '/ngnprod/archive/ngnprod_
75721.arc'
Sat Jul 3 00:09:09 2010 '/ngnprod/archive/ngnprod_
75722.arc'
Sat Jul 3 23:51:51 2010 '/ngnprod/archive/ngnprod_
75888.arc'
Sun Jul 4 00:02:09 2010 '/ngnprod/archive/ngnprod_
75889.arc'
when run on newalert.log.
Does that satisfy your requirements?