[Swarm-Support] Replicator.pl and Run number

[Kerimcan Ozcan]

In his useful script replicator.pl, Paul Johnson notes that:

"You have the responsibility of creating output files with the run number
in them if you want separate records for each run of the program.  It will
create new experiment directories every time it runs, but if your program
writes on top of its old files when it repeats itself, it is your own
fault."

My question is: How could I pass the current run number to my Swarm
application and append it to the output file name (e.g. output0, output1,
etc.)?

Kerimcan Ozcan