in reply to Re^3: What's #! got to do with it?
in thread What's #! got to do with it?

That is not true, either. For instance, 
#line 500 "Source file"

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will set tokens __LINE__ to 500 and __FILE__ to Source file. See pp. 618-619 in the Camel, 3rd ed.

In Section Seekers of Perl Wisdom