ISSUE: Merging coverage databases for more than 100 testcases

Hi,

      I've about 400 test cases to merge all the individual coverage data bases to one output file with use of IMC. I'm using below IMC version;

IMC(64): 14.10-s011: (c) Copyright 1995-2014 Cadence Design Systems Inc.

I've found the following error during merging process in BATCH MODE;
mydir> imc -batch
imc>merge mipi_base_test*/scope/mipi_base_test -out final -metrics all -initial_model union_all -message 1
imc>merge: too many arguments
imc>merge: usage: merge [-AeEpqxX3] [-L lab [-L lab [-L lab]]] file1 file2 file3
imc>merge aborted

even i tried giving all the individual test names but still giving the above error.

Can any one suggest me to merge all the 400 test cases?(for my case).

regards,

mahee