From Shared/Raster
mkdir til rst data
cd data

ln -s /discover/nobackup/rreichle/l_data/LandBCs_files_for_mkCatchParam/V001/ CATCH

then from Raster/src:

setenv ESMADIR /gpfsm/dnb02/smahanam/Icarus-3_2/GEOSagcm 
source $ESMADIR/src/g5_modules
gmake

then from Raster

set GLOBAL_CATCH_DATA = /discover/nobackup/projects/gmao/ssd/land/l_data/LandBCs_files_for_mkCatchParam/V001/GEOS5_10arcsec_mask.nc
setenv MASKFILE `echo ${GLOBAL_CATCH_DATA} | rev | cut -d / -f1 | rev `
bin/mkCubeFVRaster -v -x 43200 -y 21600 360
bin/mkLandRaster -v -x 43200 -y 21600 -t 200000000
bin/CombineRasters -t 200000000 CF0360x6C Pfafstetter

Then run your sed command to change  the header