It appears that wiper doesn't write in the file history file Regards, Loránt Sjouwerman - Scientific Services - lsjouwerman at nrao.edu -------------------------------------------------------------- c/o NRAO Array Operations Center Phone: +1-505-835-7332 P.O. Box 0 (1003 Lopezville Rd) Switch: +1-505-835-7000 Socorro NM 87801 Fax: +1-505-835-7027