- appearing to be contrary to the first line of the code, the node-named directories are one level higher than where the ordinary files for the node are located.

- as a good habit, follow glob with an expression that includes the '*' in single quotes -- "*" is prone to be dereferenced by Perl before the glob() gets called.

- grep and glob could be combined more succinctly and therefore readably - sometimes opendir etc fits better than glob in the code - in this case both seem to have their place.

- where a path is used more than once in the code, put it in a variable early on to avoid data duplication (maintainability). Consider also putting paths, regexps and filenames in configuration files to avoid hardcoding completely.

For example ...

my $tree = "/appl/perform/workspace/htdocs/node_reports";
opendir my $dh, $tree or die $!;
for my $node ( grep !( /^\./ || /^lost\+found$/), readdir $dh ) {
    print "$_\n" for grep !/^business_use\.$node$/, glob join( '/', $t
+ree, $node, '*' );
}
closedir $dh;
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