Just a small note: the -M filetest returns the amount of time since the file was last modified (i.e. the difference between now and its mtime), expressed as a number of days, so the wanted sub could also be written:

sub wanted {
    return if -d $_;
    print "<img src='$photo_url/$_' height='150' width='150'><p>\n" if
+ -M _ < 1;
}
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HTH.

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"'
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