If changing shell is not possible, try quoting your arguments in the command line.

e.g.
perl arg1.pl 'fred,barney' wilma

I'm not sure which shell you're using. For me, quoting on the command line helped me on other commands in csh.

In reply to Re: Processing @ARGV using just spaces by Anonymous Monk
in thread Processing @ARGV using just spaces by batmonk

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