cat_XDATCAR

#!/bin/tcsh

rm -rf files 

mkdir files

set num=`ls -l CONTCAR.10* | awk '{print $9}' | head -1 | sed s/"\."/" "/g | awk '{print $2}'`

cp POSCAR."$num"  files/POSCAR
cp ../POTCAR  files/POTCAR 
cp CONTCAR."$num" files/CONTCAR

head -5 XDATCAR."$num" > files/XDATCAR

foreach file ( XDATCAR.* )

tail -n +6 $file >> files/XDATCAR

end