If your linux box doesn’t comes with YUM in default installation here is the step to follow on how to install YUM using rpm on CentOS 5.3 version 1. Check the OS version 1. Run the scripts on bash shell #cat > install_yum.sh for file in \ gmp-4.1.4-10.el5.i386.rpm \ readline-5.1-1.1.i386.rpm \ expat-1.95.8-8.2.1.i386.rpm \ python-elementtree-1.2.6-5.i386.rpm \ [...]