Indeed $_ is being modified. Instead of this: 
foreach(@files) {
    print "The file is $_\n";
    func();
}
use: 
foreach my $q (@files) {
    print "The file is $q\n";
    func();
}
That way the variable is assigned to $q instead of $_ and you can do with it whatever you like.

In reply to Re^2: Array element getting deleted by eelkonio
in thread Array element getting deleted by vinoth.ree

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