My CentOS box with: $ uname -r 2.6.18-164.6.1.el5

gets the file order wrong with: ls -lrt * . Two files that were last modified in the same second are shown in order that is the reverse of the order in which they were actually last modified. Note also that the later file was first created after the earlier file was last modified.

Is the precision of this only to the second?

Mike.