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Home Operating System Linux

Install Htop 2.0 – Linux Process Monitoring for RHEL, CentOS & Fedora

How VPS by How VPS
February 7, 2020
in Linux, Operating System
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How to install Htop on Linux
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How to install Htop on Linux? This article is the continuation of our Linux system monitoring series, today we’re talking about the most popular monitoring tool called htop, which is just reached to version 2.0.2 and comes with some cool new features.

Htop 2.0: Linux Process Monitoring

Htop is an interactive real time process monitoring application for Linux/Unix like systems and also a handy alternative to top command, which is default process monitoring tool that comes with pre-installed on all Linux operating systems.

Htop has numerous other user-friendly features, which are not available under top command and they are:

  1. In htop you can scroll vertically to view the full process list, and scroll horizontally to view the full command lines.
  2. It starts very quickly as compared top, because it doesn’t wait to fetch data during startup.
  3. In htop you can kill more than one processes at once without inserting their PIDs.
  4. In htop you no longer needed to enter process number or priority value to re-nice a process.
  5. Press “e” to print the set of environment variables for a process.
  6. Use mouse to select list items.

How to install Htop on Linux?

How to install Htop on Linux?

  1. How to install Htop on Linux?
    1. Step 1. Install Htop
      1. Install Htop Using Binary Packages in Linux
        1. On RHEL/CentOS – 32-bit OS
        2. On RHEL/CentOS – 64-bit OS
        3. On Fedora OS
        4. On Debian and Ubuntu
      2. Compile and Install Htop from Source Packages
        1. On RHEL/CentOS and Fedora
        2. On Debian and Ubuntu
    2. Step 2. How do I use htop?
      1. Htop is having three sections mainly
      2. Htop Shortcut and Function Keys

Step 1. Install Htop

Install Htop Using Binary Packages in Linux

Important: Following binary installation, will give you the available htop version 1.0.3 or 1.0.2 in most distributions, so if you’re looking for Htop 2.0.2 version, then I recommend you to follow Source installation section as shown below:

To install Htop on RHEL 7/6/5 and CentOS 7/6/5, your system must have EPEL repository installed and enabled, to do so run the following commands on your respective distributions to install and enable it for your system architecture (32bit or 64bit).

On RHEL/CentOS – 32-bit OS
-------------- For RHEL/CentOS 6 --------------
# wget http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm
# rpm -ihv epel-release-6-8.noarch.rpm

-------------- For RHEL/CentOS 5 --------------
# wget http://download.fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm
# rpm -ihv epel-release-5-4.noarch.rpm
On RHEL/CentOS – 64-bit OS
-------------- For RHEL/CentOS 7 --------------
# wget dl.fedoraproject.org/pub/epel/7/x86_64/Packages/e/epel-release-7-11.noarch.rpm
# rpm -ihv epel-release-7-11.noarch.rpm 

-------------- For RHEL/CentOS 6 --------------
# wget http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
# rpm -ihv epel-release-6-8.noarch.rpm

-------------- For RHEL/CentOS 5 --------------
# wget http://download.fedoraproject.org/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm
# rpm -ihv epel-release-5-4.noarch.rpm

Once EPEL repository has been installed, you can hit the following yum command to fetch and install the htop package as shown.

# yum install htop
On Fedora OS

Fedora users can easily install htop using Fedora Extras repository by typing:

# yum install htop
# dnf install htop      [On Fedora 22+ releases]
On Debian and Ubuntu

In Debian and Ubuntu, you can fetch htop by typing:

# sudo apt-get install htop

Compile and Install Htop from Source Packages

To install Htop 2.0.2 version, you must have Development Tools and Ncurses installed on your system, to do so run the following series of commands on your respective distributions.

On RHEL/CentOS and Fedora
# yum groupinstall "Development Tools"
# yum install ncurses ncurses-devel
# wget http://hisham.hm/htop/releases/2.0.2/htop-2.0.2.tar.gz
# tar xvfvz htop-2.0.2.tar.gz
# cd htop-2.0.2
On Debian and Ubuntu
$ sudo apt-get install build-essential  
$ sudo apt-get install libncurses5-dev libncursesw5-dev
$ wget http://hisham.hm/htop/releases/2.0.2/htop-2.0.2.tar.gz
$ tar xvfvz htop-2.0.2.tar.gz
$ cd htop-2.0.2

Next, run the configure and make script to install and compile htop.

# ./configure
# make
# make install

Step 2. How do I use htop?

Now run the htop monitoring tool by executing following command on the terminal.

# htop

Htop is having three sections mainly

  1. Header, where we can see info like CPU, Memory, Swap and also shows tasks, load average and Up-time.
  2. List of processes sorted by CPU utilization.
  3. Footer shows different options like help, setup, filter tree kill, nice , quit etc.
Install Htop 2.0 – Linux Process Monitoring for RHEL, CentOS & Fedora

Htop Linux Processes Monitoring

Press F2 or S for setup menu > there are four columns i.e Setup, Left Column, Right Column and Available Meters.

Here, you can configure the meters printed at the top of the window, set various display options, select among color patterns and choose which columns are printed in which order.

Install Htop 2.0 – Linux Process Monitoring for RHEL, CentOS & Fedora

Htop Setup Screen

Type tree or t to display processes tree view.

Install Htop 2.0 – Linux Process Monitoring for RHEL, CentOS & Fedora

Htop Process View in Tree Format

You can refer function keys displayed at footer to use this nifty htop application to monitor Linux running processes. However, we advise to use character keys or shortcut keys instead of function keys as it may have mapped with some other functions during secure connection.

Htop Shortcut and Function Keys

Some of the shortcut and function keys and its functionality to interact with htop.

Source: tecmint.com

Tags: centos install htophtop installLinux Commandslinux guidelinux install htoplinux vps setup guide
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