Under CentOS, it is not possible to install htop via the official repositories. Here is a small memo about how to install htop under CentOS. To install htop, we will go through the addition of an external repository: CentOS-Dag.repo. vi /etc/yum.repos.d/CentOS-Dag.repo Then paste the following lines: [dag] name=Dag RPM Repository for Red Hat Enterprise Linux baseurl=http://apt.sw.be/redhat/el$releasever/en/$basearch/dag gpgcheck=1 […]