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  1. or download this
    my ($tries, $success) = (0, 0);
{ 
...
  $success =1;
}
die "Gave up after", --$tries, " attempts." unless $success;
  2. or download this
    
perl -e 'print "How sweet does a rose smell? "; chomp ($n = <STDIN>); 
+$rose = "smells sweet to degree $n"; *other_name = *rose; print "$oth
+er_name\n"'