Begin by reading perlsub.

The use of local for routine parameter passing is not a good idea; you should be using my instead: 

sub do_work
{
    my ($cmd) = @_;
    # whatever...
}

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While there are circumstances where local is needed, this is not one of them. There are other excellent writeups on this topic in the Tutorials section.

In reply to Re: Strict and Subroutines by VSarkiss
in thread Strict and Subroutines by Pearte

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