Can I rollback to the last closed status?

Hi,

I made a mistake that overwriting my codes by using "tar -xvf". This is the first valid disk I/O operation when I launch the OS (CentOS) today, I think. (Other operations include "ls", "diff", etc.)

I found following files under my vmware maching installing directory:

CentOS xxx-0-flat.vmdk

CentOS xxx-0.vmdk

CentOS xxx-000004.vmdk

xxxxx.vmem.

And the first file's modification date is before my change, while the other three seems later than it.

So is there any way to rollback to the previous status that before my change?

Like backup CenOS xxx-0-flat.vmdk, shutdown the OS, and restore the CenOS xxx-0-flat.vmdk?

Or just remove the last there files?

Many thanks for you help !