Bat file write omnidb command, then execute the bat die circulation, solving

DP server omnidb - session (session ID) - report major can output error log
Above statement performs no problem in open the CMD window alone, perform it again and then the output, but died in on the bat cycle, only write omnidb also infinite loop

Great god taught why, although there are other ways to achieve effect, but I don't understand why the bat execute this command will die in circulation, strange