Code lines for sequential runs through PsN

Dear all, I have some 10,000 to 100,000 simulation files to run through PsN so I typed in cmd something which looks like the following lines: execute xxxxxyyyyy_000001.mod xxxxxyyyyy_000002.mod ... xxxxxyyyyy_030000.mod But the string is too long in this case. So, I created a batch file which breaks down the codes into 100 lines and hoped that each line will run sequentially, which looks like: execute xxxxxyyyyy_000001.mod xxxxxyyyyy_000002.mod ... xxxxxyyyyy_000300.mod execute xxxxxyyyyy_000301.mod xxxxxyyyyy_000302.mod ... xxxxxyyyyy_000600.mod execute xxxxxyyyyy_000601.mod xxxxxyyyyy_000602.mod ... xxxxxyyyyy_000900.mod ... execute xxxxxyyyyy_029701.mod xxxxxyyyyy_029702.mod ... xxxxxyyyyy_030000.mod The run started successful, unfortunately only the first line was run (so, the run stopped after the 300th file). It would be troublesome to manually run these 100 lines one by one. What would be an appropriate code for this purpose? Thanks! Matthew