Oracle Database Discussions

hi all,
I am performing an impdp and i have used nohup and the output is written in nohup.out.Now I have to do an other impdp in the same server and here too I am planning to do the nohup. I dont want the output of the second impdp to be written on the same nohup file where the first impdp writes it op. How can I do it, is there anyway change the name of nohup op file? please help. I am using this command to do the first impdp.

nohup impdp 'griddba/####@gisms' directory=gisms_REFRESH DUMPFILE=GWAC_EMEA_PRD_MD.dmp logfile=GWAC_EMEA_PRD_MD_gisms.log TABLE_EXISTS_ACTION=truncate exclude=grant &