"is there a way to do the same job without these new things, like use strict and use warnings.."

See Use strict and warnings and Use strict warnings and diagnostics or die.

"so im thinking how out of thin air was I meant to have known these from the past codes."

Perhaps you could have done research into the tool you have been asked to use?

In reply to Re^3: Simple Perl, to get me started. by marto
in thread Simple Perl, to get me started. by Lust69

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