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Mr. Muskrat
<p>You could go the route you described and call your script from another script (bash/batch/perl/whatever) that loops through the different parameters but also passes a unique value for the coverage db (based on the arguments, pid, or whatever).</p>
<p>The invocation of Devel::Cover would be slightly different: <code>perl -MDevel::Cover=-db,cover_db-<unique value> my_file.pl -arg1 <arg1_value> -arg2 <arg2_value></code>.</p>
<p>When all of the calls to your script are done, you'd simply call the cover script passing a wildcard for the coverage database like <code>cover -report=html cover_db-*</code></p>
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