$filelist = "$home/filelist-${wfid}.txt";
    my @files = $task->GetFiles();
    open FILELIST, ">$filelist";
    foreach my $file (@files){
        print FILELIST "$file\n";
    }
    close FILELIST;

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In this syntax, each member of @files is read in $file, what happens after that ?
What does following line of code do ?
print FILELIST "$file\n" ;

In reply to printing of an array by manishrathi

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