Not wishing to duplicate many nodes on the subject you can find some authoratitive answers at Perl equivalent of C-style and Better ways to make multi-line comments in Perl?. Although here's multi-line comment style that I've yet to see about the monastery

#!/usr/bin/perl -P

#if 0

insert comments here

#endif
[download]

See. perlrun for more info.
HTH

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broquaint