You could add 

INIT{ print "About to start running code\n" }
END{ print "Code ending\n"; }

[download]

Anything between those is your program; anything before or after is the interpreter doing its thing.

See perldoc

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Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
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In reply to Re: tracing system calls a perl script is making by BrowserUk
in thread tracing system calls a perl script is making by gideondsouza

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