yum -y -q  install wget gcc patch 
wget https://ftp.gnu.org/gnu/bash/bash-5.0.tar.gz -O - | tar xz
cd bash-5.0
wget -r -nd -np http://ftp.gnu.org/gnu/bash/bash-5.0-patches/
for BP in `ls bash50-*|grep -v sig`; do patch -p0 < $BP; done
./configure 
make
make install