cut is a deleting operation
I would guess you did not actually close devcoin, but minimized it to the tray. So locked files did not get copied over. When you ran it off of G it could not find a wallet.dat and so made a new one.
copy is not a combining operation, at this point the filesystem replaced your c wallet.dat with the one you just told it to copy from G that was newly made it seems.
I didn't delete anything so the coins have to be on there somewhere. Can anybody help me out. I really don't wanna lose this many coins. Thanks.
you did both an attempted delete with the cut, and you overwrote any existing wallet.dat left if that failed when you copied back from G. So yeah, you did delete and overwrite things. At this point you should have turned off the computer and not let anything else be written to the drives. Now, you would take them out and run a program that searched for bdb patterns and key patterns, in the hope that at the raw sector level the data was left, and it reallocated things. If not and it is a magnetic drive you have a slim chance a consumer grade data recovery place can get to it, very slim. If is is ssd there are some other tricks to try, but also pretty expensive to have done.
I think you may have wiped out your file past your abilities to recover it if I read what you did accurately.