The situation: I have a pieceofcrapuous laptop. One of the things that make it pieceofcrapuous is that the battery is dead, and the power cable pulls out of the back with little effort.
I recently received a non-pieceofcrapuous laptop, and I am in the process of copying everything from old to new. I'm trying to xcopy c:*.* from the old machine to an external hard drive, but because the cord pulls out so frequently, the xcopy is interrupted fairly often.
What I need is a switch in XCopy that will copy eveything except for files that already exist in the destination folder -- the exact opposite of the behavior of the /U switch.
Does anyone know of a way to do this?
/D may be what you are looking for. I find it works quite fast for backing-up as existing files are not copied.
xcopy "O:\*.*" N:\Whatever /C /D /S /H
/C Continues copying even if errors occur.
/D:m-d-y Copies files changed on or after the specified date.
If no date is given, copies only those files whose source time
is newer than the destination time.
/S Copies directories and subdirectories except empty ones.
/H Copies hidden and system files also.
More information: http://www.computerhope.com/xcopyhlp.htm