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$ ls -goc dummy.txt; perl -e 'utime undef, undef, "dummy.txt"'; ls -go +c dummy.txt -rw-r--r--+ 1 0 2011-01-05 08:44 dummy.txt -rw-r--r--+ 1 0 2011-01-05 08:49 dummy.txt
>dir dummy.txt 05/01/2011 08:49 0 dummy.txt ... >dir dummy.txt 05/01/2011 08:53 0 dummy.txt