cd /usr/local/src/ wget http://ftp.tu-chemnitz.de/pub/linux/dag/redhat/el6/en/x86_64/rpmforge/RPMS/realpath-1.17-1.el6.rf.x86_64.rpm rpm -Uvh realpath-1.17-1.el6.rf.x86_64.rpm
Source: https://centos.pkgs.org/6/repoforge-x86_64/realpath-1.17-1.el6.rf.x86_64.rpm.html