Use of VERBOSE in debian-cd

Hi all,

The debian-cd scripts are not necessarily run by hand. A higher level script may be driving. That, in turn, may be driven by yet another layer of scripting. (In fact, that's what I'm doing now.) Unfortunately, one cannot know that a hierarchy of scripts used by some scripts that are being used by my scripts are going to be unable to cope with a non-numeric value in the environment variable, VERBOSE. I got error messages from "list2cd" because VERBOSE was set to "true". Please consider being careful:

my $verbose = $ENV{VERBOSE} || 0;
if ($verbose !~ m/^\d+$/) {

    $verbose = 0;
}

Thank you. - Bruce

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