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  1. or download this
    perl -e "for (glob '*') { my ($id) = /(\d+)$/ || /^(\d+)/; print qq($_
    + => id=$id\n); }"
    
  2. or download this
    >perl -MO=Deparse -e "for (glob '*') { my ($id) = /(\d+)$/ || /^(\d+)/
    +; print qq($_ => id=$id\n); }"
    use File::Glob ();
    ...
    -e syntax OK
    
    >