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For 2023 - we are now fully retired from IT training.
We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.

Lisa and I (Graham) now live in what was our training centre in Melksham - happy to meet with former delegates here - but do check ahead before coming round. We are far from inactive - rather, enjoying the times that we are retired but still healthy enough in mind and body to be active!

I am also active in many other area and still look after a lot of web sites - you can find an index ((here))
Finding big files in or below a directory

Posted by admin (Graham Ellis), 17 October 2002
Here's a Perl program that reports (in size order) all big files in or below a number of directories specified on the command line.  Similar to the example that some of you may have seen on the Perl courses, but imporoved to look in hidden (dot) directories, and also improved so that it doesn't have problems with circular links

@queue = @ARGV;
while ($current = shift (@queue) ) {
       opendir DH,$current;
       @content = readdir DH;
       foreach $item (@content) {
               next if ($item =~ /^\.{1,2}$/);
               $fullname = "$current/$item";
               if (-l $fullname) { next; }
               if (-d $fullname) {
                       push @queue,$fullname;
               if (-s $fullname > 100000) {
                       $big{$fullname} = -s $fullname;
foreach $item (sort {$big{$b}<=>$big{$a}} keys %big) {
       printf ("%8d %s\n",$big{$item}, $item);

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