Hello great monks. I am trying to sort a directory by file size. My plan is to create a script that performs a compare of two files irrespective of the name to find duplicate files in a directory or two different directories. I am using md5sum for the comparison, but do not want to waste time on generating the checksum if files are of different size, hence the sort. In my script, I am using the command
>>@sDir=sort {-s $a <=> -s $b } (readdir D1);
This works for the first two . and .. but after that I get the error "Use of uninitialized value in numeric comparison (<=>) at comps.pl line 5". I thought that I had this working, but now am not sure. Maybe my test folder had all numerical file names. Please help oh wise and wonderful monks.

In reply to Sort directory by file size by nnigam1

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