Commands to install git in Linux:
yum install curl-devel expat-devel gettext-devel \ openssl-devel zlib-devel
wget https://git-core.googlecode.com/files/git-1.9.0.tar.gz
tar -xvzf git-1.9.0.tar.gz
cd git-1.9.0
make prefix=/usr/local all
make prefix=/usr/local install