Slash Style Guide: Coding Principles 3 Use tests. (this is all they say about tests. More about this later.) Filehandles and Globs use opendir() and readdir(). don't use the glob operator glob("*") or <*> portability / consistency use Slash's filehandle function; it works like a regular filehandle, but you can use it like a regular variable lexical don't need to use *FILE to pass to a subroutine. In fact, don't use symbol-table globs. use Slash; my $fh = gensym(); open $fh, "< $file" or die $!;