fileName="bnc`date +%y%m%d`"

tar -cvf ${fileName}.tar bnc.bck    \
                         *.cpp      \
                         *.h        \
                         *.pro      \
                         RTCM/*.cpp \
                         RTCM/*.h

gzip      ${fileName}.tar
mv        ${fileName}.tar.gz ${fileName}.tgz
chmod 440 ${fileName}.tgz