$_ is just a special global variable as defined in perlvar.

It is used as the default input for a lot of builtin functions when nothing else is defined. But yes, it can be thought of as just any other variable, just one that is declared automatically by perl to enable you to write tighter code when you want to.

In reply to Re^3: The $_ Special Variable by wind
in thread The $_ Special Variable by chuloon

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