Recoverpoint commands and plink

looking to automate the configuration of a few pieces during a VMware SRM excercise.  Anyone with experience with issue commands to RPA using plink?

I'm using the following:

plink -ssh admin@drrpa.com -pw blahblah-v < "E:\SRM_SCRIPTS\RPACOMMANDS\RecoverpointUnManage.txt"

the tst files contains lines such as:

config_external_mgmt group=duane managed_by=EXTERNAL_APPLICATION

config_external_mgmt group=duane1 managed_by=EXTERNAL_APPLICATION

config_external_mgmt group=duane2 managed_by=EXTERNAL_APPLICATION

problem is that while commands seems to execute, plink never officially exits.  if i put a singled command in the file, it works just fine.