Add -u flag support for cp

[closertotheend]

Hello!

It would be great if someone could add -u flag support for cp command.

Right now output is following:

cp: option not recognized: u

Thanks in advance.

[nfischer]

@ilja903 could you please reopen this as an issue against shelljs proper? That's where we add features for this sort of thing. This should be possible though. Thanks!

[closertotheend]

Hi!

Reopened it here: shelljs/shelljs#526

Maybe we should close this issue?

Thanks!

[nfischer]

Looks perfect! I'll see if we can look into adding support in ShellJS. Closing this issue for now, so we can continue discussion on the other thread.