steps:
1) add
setenv CVSROOT ':ext:atn@mitgcm.org:/u/gcmpack'

into .cshrc

2) 
a) either create a pair of keys and copy the private/ublic one to proper locations or
b) check a machine that has a private key whose public key is in authorizedkeys (say ross) and copy over

cp /scratch/atn/MITgcm/verification/lab_sea/code_5x5_newcode_stripped_v6g/* .
cvs co -P -d atnguyen_contrib MITgcm_contrib/atnguyen
cd atnguyen_contrib/
mkdir code_21Dec2012_saltplume
cvs add code_21Dec2012_saltplume
%cvs add -m "code latest saltplume fix" code_21Dec2012_saltplume
cd code_21Dec2012_saltplume
cvs -q -n update
cp /scratch/atn/MITgcm/verification/lab_sea/code_5x5_newcode_stripped_v6g/* .
cvs add *.F *.h packages.conf README SIZE.h_mpi
cvs -q update
cvs commit -m "inprogress swapping 1-x with x in plumefrac" *.F *.h packages.conf README SIZE.h_mpi

3) remove file:
cd to the dir of file to remove, say filename is "a.h":
cvs -q -n up
rm a.h
cvs remove a.h
cvs commit -m "remove a.h" a.h
cvs -q -n up