htop is a free (GPL) ncurses-based interactive process viewer for Linux.
It is similar to top, but allows you to scroll vertically and horizontally, so you can see all the processes running on the system, along with their full command lines, as well as viewing them as a process tree, selecting multiple processes and acting on them all at once.
In other OS such as Ubuntu and Fedora based linux, the process to install htop is a very simple, one line apt-get or yum install respectively.
To install htop for CentOS 7, follwo the below steps.
Step 1
The first step is to install the EPEL package:
sudo yum install epel-release
The following is a sample output:
[test@myServer ~]$ sudo yum install epel-release Loaded plugins: fastestmirror, langpacks Determining fastest mirrors * base: mirror.sjc02.svwh.net * elrepo: repos.lax-noc.com * epel: mirror.sfo12.us.leaseweb.net * extras: mirrors.usc.edu * updates: mirrors.tummy.com Resolving Dependencies --> Running transaction check ---> Package epel-release.noarch 0:7-10 will be updated ---> Package epel-release.noarch 0:7-11 will be an update --> Finished Dependency Resolution Dependencies Resolved =========================================================================================== Package Arch Version Repository Size ========================================================================================== Updating: epel-release noarch 7-11 epel 15 k Transaction Summary ========================================================================================== Upgrade 1 Package Total download size: 15 k Is this ok [y/d/N]: y Downloading packages: epel/x86_64/prestodelta | 884 B 00:00:00 epel-release-7-11.noarch.rpm | 15 kB 00:00:00 Running transaction check Running transaction test Transaction test succeeded Running transaction Updating : epel-release-7-11.noarch 1/2 Cleanup : epel-release-7-10.noarch 2/2 Verifying : epel-release-7-11.noarch 1/2 Verifying : epel-release-7-10.noarch 2/2 Updated: epel-release.noarch 0:7-11 Complete!
At this point, you should be able to install htop.
Step 2
Install htop by simply issuing the command.
sudo yum -y install htop
You should see the following:
[test@myServer ~]$ sudo yum -y install htop Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile * base: mirror.sjc02.svwh.net * elrepo: repos.lax-noc.com * epel: mirror.sfo12.us.leaseweb.net * extras: mirrors.usc.edu * updates: mirrors.tummy.com Resolving Dependencies --> Running transaction check ---> Package htop.x86_64 0:2.0.2-1.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ========================================================================================== Package Arch Version Repository Size ========================================================================================== Installing: htop x86_64 2.0.2-1.el7 epel 98 k Transaction Summary =========================================================================================== Install 1 Package Total download size: 98 k Installed size: 207 k Downloading packages: htop-2.0.2-1.el7.x86_64.rpm | 98 kB 00:00:00 Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : htop-2.0.2-1.el7.x86_64 1/1 Verifying : htop-2.0.2-1.el7.x86_64 1/1 Installed: htop.x86_64 0:2.0.2-1.el7 Complete!
Step 3
Now you can run htop by simply typing the command htop.
Also see our page on Installing htop on Ubuntu 16.04 and 18.04
