I have used cp -rl
to copy a folder. When measuring the size of the source and of the result of the copy du -sl
returns slightly different sizes, even though diff
confirms that their content are identical:
$ cp -rl folderA/ folderB/
$ du -sl folderA folderB
98561224 folderA
98590512 folderB
$ diff --brief -ra folderA/ folderB/
$
Both folders reside on the same hard drive, no modifications to any of them have been done between the copy and the measure. I found nothing in the documentation of du
and cp
which could explain the difference.