How to merge from HEAD into another branch?

[Jean-Christian Imbeault]

I have (by mistake) imported (or checked in, I'm not sure) some new
files/folders onto my main trunk (HEAD). I want to also have the new
files/folders on one of my branches (DEV) but can't seem to figure out
how to do this.

I have tried from a DEV sandbox:

$ cvs up -jHEAD path/to/missing/top/level/directory

or

$ cvs up -j1 path/to/missing/top/level/directory

But neither do anything.

I could try cvs import but I try and stay away from that command ...

Thanks,

Jc