cp without options sorry for my English... I normality copy a file without options, cp origin destination **but sometime I to show** cp -u origin destination In **man cp** give options as an obligation. My question can please anyone explains the difference between deploy `-u` and not used it, I **muss** to use an option when I'll an ordinary copy from `A`to `B`? Thanks

`cp -u` will only update the destination, if it does not exist or the source is newer that the destination.