DOS commands in an .ncf file on Novell

I am running a Novell 5.0 server. Before and after my Arcserve backup I load and unload the SQL database. Each morning I must go in and delete the log file in order for the database to reload properly. I would like to automate this process in the .ncf file that loads and unloads the database but I cannot find any commands except for a login script. I tried the Toolbox utility to no avail. Any suggestions would be greatly appreciated.