Install or build git from source for centos, build may be necessary as centos has older version of git on repo.

build_git_centos.sh

# git
app_name="git"
echo "===> Checking if $app_name is installed .."
# if yum list installed "$app_name" > /dev/null 2>&1; then
    # echo "===> $app_name was already installed.  Nothing was done"
# else
    # echo "$app_name is not installed, installing now..."
	# sudo yum install git -y
# sudo yum install git -y

## updating git : generally centos has old git.
# yum install \
# https://repo.ius.io/ius-release-el7.rpm \
# https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
# yum install git -y

# OR

sudo yum -y groupinstall "Development Tools"
mkdir ~/hd_tools
cd ~/hd_tools/
export VER="2.33.0"
wget https://github.com/git/git/archive/v${VER}.tar.gz
tar -xvf v${VER}.tar.gz
rm -f v${VER}.tar.gz
cd git-*
make configure
sudo ./configure --prefix=/usr
sudo make
sudo make install

build_or_install_git_centos.sh

# git
app_name="git"
echo "===> Checking if $app_name is installed .."
# if yum list installed "$app_name" > /dev/null 2>&1; then
    # echo "===> $app_name was already installed.  Nothing was done"
# else
    # echo "$app_name is not installed, installing now..."
	# sudo yum install git -y
# sudo yum install git -y

## updating git : generally centos has old git.
# yum install \
# https://repo.ius.io/ius-release-el7.rpm \
# https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
# yum install git -y

# OR

sudo yum -y groupinstall "Development Tools"
mkdir ~/hd_tools
cd ~/hd_tools/
export VER="2.33.0"
wget https://github.com/git/git/archive/v${VER}.tar.gz
tar -xvf v${VER}.tar.gz
rm -f v${VER}.tar.gz
cd git-*
make configure
sudo ./configure --prefix=/usr
sudo make
sudo make install