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May I know what are the system monitor applications available in Ubuntu (GUI/CLI)?

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closed as too broad by Avinash Raj, Amith KK, Alvar, Braiam, Eric Carvalho Mar 5 '14 at 13:46

There are either too many possible answers, or good answers would be too long for this format. Please add details to narrow the answer set or to isolate an issue that can be answered in a few paragraphs.If this question can be reworded to fit the rules in the help center, please edit the question.

posted to help others. even its a basic one. may be some of us missing some awesome tools. down there I am posting what I know. Please improve it if you know anything new. – Raja Mar 5 '14 at 12:11
Thanks, its good to see such helpers :) – Maythux Mar 5 '14 at 12:15
possible duplicate of A light alternative to gnome-system-monitor? – kamil Mar 5 '14 at 12:18
I don't think this is too broad, basically because a limited number of answers is possible (and in fact there is a very good answer). I am voting to reopen, but let's see where democracy takes us. – don.joey Mar 5 '14 at 14:00
Okay I will wait. If no changes , I can think it is the time. @don.joey thanks for your support. – Raja Mar 5 '14 at 14:05

ndicator-SysMonitor Indicator-SysMonitor does a little, but does it well. Once installed and run, it displays CPU and RAM usage on your top panel. Simple.

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Download from here


One of my personal favourites

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Screenlet you’ll find a bunch of differently styled CPU and RAM monitors included in the screenlets-all package available in the Ubuntu Software Center.

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To install:

sudo apt-get install python-pip build-essential python-dev
sudo pip install Glances
sudo pip install PySensors

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Displays information about CPU, memory, processes, etc.


This command line tool will display statistics about your CPU, I/O information for your hard disk partitions, Network File System (NFS), etc. To install iostat, run this command:

sudo apt-get install sysstat

To start the report, run this command:


To check only CPU statistics, use this command:

iostat -c

For more parameters, use this command:

iostat --help


The mpstat command line utility will display average CPU usage per processor. To run it, use simply this command:


For CPU usage per processor, use this command:

mpstat -P ALL


Saidar also allows to monitor system device activities via the command line.

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You can install is with this command:

sudo apt-get install saidar

To start monitoring, run this command:

saidar -c -d 1

Stats will be refreshed every second.


GKrellM is a customizable widget with various themes that displays on your desktop system device information (CPU, temperature, memory, network, etc.).

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To install GKrellM, run this command:

sudo apt-get install gkrellm


Monitorix is another application with a web-based user interface for monitoring system devices.

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Install it with these commands:

sudo add-apt-repository ppa:upubuntu-com/ppa
sudo apt-get update
sudo apt-get install monitorix

Start Monitorix via this URL:

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You also have iotop to monitor I/O

Run it as,

sudo iotop

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  1. Gnome System monitor

This is default in every Ubuntu installation. Just type as monitor in Unity dash and it will list you.

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2 . top

This is a CLI tool , Open your terminal and and type top and you can view it.

enter image description here 3 . htop

This is not default one . you have to install it by using

sudo apt-get install htop

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4 . nmon

This is also not default one. You have to install it manually with

sudo apt-get install nmon

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hope that helps.

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Writing "hope that helps" on your own question is just wrong. – Alvar Mar 5 '14 at 12:33
@Alvar read my comment please. Help to others – Raja Mar 5 '14 at 12:38

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