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I installed Ubuntu 11.04 on one of my systems and I am using the Unity interface. Unity is working quite well so far but I really miss panel applets for net speed, cpu temp, and system monitor.

These applets are useful for viewing quick info. Unlike 10.10, there is no other way to get this info onto the panel or unity launcher. There are solutions like screenlets and conky but they don't feel appropriate for a clean desktop look.

If you know one then please list out any third party indicators with links so that they can be found.


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65 Answers

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StackApplet

Category: Other

StackApplet is a GNOME panel applet that monitors your activity on any StackExchange site.

stackapplet

stackapplet Install stackapplet in Ubuntu Software Center

Update:

As indicated in comments, the version of StackApplet in the Ubuntu Software Center is old and broken. To install it, use instead this ppa.

The first time the application is used, run

python /usr/share/stackapplet/stackapplet.py &

from a terminal.

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CPUFreq

Category: System Information

cpu-freq-screenshot

If you have a laptop or Netbook and want to be able to cool down that chip that's burning your hand and save some battery power this will be useful.

sudo apt-get install indicator-cpufreq

If you don't use the indicator plugin (say, on Xfce), you can also use this utility in the systray (or notification area).

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4  
indicator-cpufreq appears not to work with Ubuntu 12.04 –  Inkayacu May 5 '12 at 16:48
1  
The PPA threw a 404 for me when I tried to add it, but it turns out is was already in the repos for 12.04, so I installed that and it appears to be working just fine. –  Nick DeMayo Jul 15 '12 at 14:15
3  
The PPA is no longer needed, the indicator comes with Ubuntu 12.04. It also does work (but you need to start it manually, such as by typing indicator-cpufreq on a terminal) –  Scott Ritchie Jul 27 '12 at 0:33
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PPA Download Statistics

Category: Other

indicator-ppa-download-statistics is a Python3 indicator which provides download counts for PPAs.

indicator-ppa-download-statistics

PPA: ppa:thebernmeister/ppa
Package: indicator-ppa-download-statistics

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Psensor

Psensor is a tool to monitor hardware temperature that integrates nicely with Unity by using an Unity Launcher counter which displays the enabled temperatures as well as an appindicator that you can use to take a quick look at all available hardware temperatures or cpu usage.

Psensor can monitor:

  • motherboard and CPU temperatures
  • the temperature of Nvidia GPUs
  • experimental ATI/AMD GPUs temperature monitor (not enabled for the Ubuntu PPA as it requires compilation using libatiadlxx)
  • hard disk drives temperature
  • fan speed
  • CPU usage

enter image description here

Plug-ins installation:

sudo apt-get install lm-sensors hddtemp

sudo sensors-detect

sudo service module-init-tools start

Psensor installation:

sudo add-apt-repository ppa:jfi/ppa

sudo apt-get update

sudo apt-get install psensor
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Terran Computational Calendar

Category: Date & Time

Displays the terran computational calendar date.

This calendar system may be useful for mathematicians and programmers due to it's simple algorithm, zero-based numbering, and synchronization with the Unix Epoch. More info at terrancalendar.com

This app indicator can be downloaded from github or from the links below.

screenshot: terrancalendar.com/app_indicator/screenshot.jpg

install: terrancalendar.com/app_indicator/install.txt

app indicator: terrancalendar.com/app_indicator/terran_computational_calendar.py

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Pastie

Category: Clipboard Manager

One of many clipboard managers this is considered to be the pick of the bunch but we will leave opinions to the bloggers as that's their job.

pastie

ppa:hel-sheep/pastie and install package pastie, with these commands:

sudo add-apt-repository ppa:hel-sheep/pastie
sudo apt-get update
sudo apt-get install pastie
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1  
Not available for precise. (Although workarounds are present: xubuntugeek.blogspot.de/2012/05/…) –  math Jul 26 '12 at 7:04
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Syspeek

Category: System Information

SysPeek is a system monitor indicator that displays CPU usage, memory usage, swap usage, disk usage and network traffic.

syspeek

ppa:emptythevoid/syspeeknew and install package syspeek, with these commands:

sudo add-apt-repository ppa:emptythevoid/syspeeknew
sudo apt-get update
sudo apt-get install syspeek
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Radio Tray

Category: Multimedia

A minimalistic radio player that runs in the notification area. One can also add many other radio stations by adding there URLs.

enter image description here

ppa:eugenesan/ppa and install package radiotray, with these commands:

sudo add-apt-repository ppa:eugenesan/ppa
sudo apt-get update
sudo apt-get install radiotray
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Ubuntu One Indicator

Category: Cloud Computing

For monitoring the sync state of your Ubuntu One account.

enter image description here

ppa:rye/ubuntuone-extras and install package indicator-ubuntuone, with these commands:

sudo add-apt-repository ppa:rye/ubuntuone-extras
sudo apt-get update
sudo apt-get install indicator-ubuntuone
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1  
Instructions: iloveubuntu.net/… –  kilaka Jul 22 '12 at 21:58
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SSHPlus

Category: Network

A simple version of SSHMenu with a list of your regular SSH connections (previously called SSHlist). SSHplus supports sshmenu configuration files, and adds the entries automatically.

sshplus

  1. Download sshplus.py from here

  2. In Terminal make the file executable and copy to /usr/local/bin

    chmod a+rx sshplus.py
    sudo cp sshplus.py /usr/local/bin
    
  3. Create a .sshplus file in home directory and add ssh hosts - one per line

    gedit ~/.sshplus
    

    Configuration example provided here.

    • Run sshplus

    Run Command Alt+F2 and type sshplus.py

    • Optionally add to Startup Programs list so it runs upon login.

Source

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System Load Indicator

Category: System Information

Network, memory and cpu usage indicator; this is a port of the original System Monitor GNOME Panel applet (gnome-system-monitor applet).

enter image description here

In Preferences you can customize the output to fit it to your desktop theme:

preferences dialog

To install:

You can install it through the Ubuntu Software Centre by clicking this button:

Install via the software center

or through the command line:

sudo apt-get install indicator-multiload

If you want the latest updates, you can install it from the PPA with these commands:

sudo add-apt-repository ppa:indicator-multiload/stable-daily
sudo apt-get update
sudo apt-get install indicator-multiload
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14  
this indicator as it seems, according to this bugs.launchpad.net/ubuntu/+source/unity/+bug/720446 that it causes a memory leak in unity. so be aware. –  suli8 May 9 '11 at 3:15
2  
I would love for the way the scaling of the network throughput works to be a user setting. I prefer a fixed scale rather than the indicator scaling up and down as throughput demands. Other than that, interesting. –  mvexel Aug 22 '11 at 4:59
2  
The memory leak bug is when it works in tandem with compiz...so no compiz (which is buggy anyways) equals happy and safe indicator.. :) –  charlie May 8 '13 at 13:08
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Stardate

Category: Other

indicator-stardate is a Python3 indicator which provides the current Star Trek™ stardate.

indicator-stardate

PPA: ppa:thebernmeister/ppa
Package: indicator-stardate

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Lunar

Category: Other

indicator-lunar is a Python3 indicator which provides the moon phase, moon/sun/planet rise/set times and other astronomical information.

indicator-lunar

PPA: ppa:thebernmeister/ppa
Package: indicator-lunar

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Fortune

Category: Other

indicator-fortune is a Python3 indicator which calls the fortune program and shows the result in the on-screen notification.

indicator-fortune

PPA: ppa:thebernmeister/ppa
Package: indicator-fortune

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Stock Quotes Indicator

Category: network, finance

indicator-stocks is a simple stock quotes indicator.

You can click on a menu item to see the stock chart in a browser.

indicator-stocks screenshot

sudo add-apt-repository ppa:ce3a/indicator-stocks
sudo apt-get update
sudo apt-get install indicator-stocks

source code

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USB Safe Removal

Category: Mounting/Drive Removal

A little appindicator for flash drive safe removal.

usb safe removal

To add this indicator, download & install the deb

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1  
I have updated the links to point to github repo... –  Cas Nov 12 '13 at 12:34
1  
Was a trivial fix so I forked and created new release. –  Cas Nov 18 '13 at 23:38
1  
Have you got a usb pen drive attached and mounted. Could try removing ~/.config/indicator-usb. I have enabled issue tracker. –  Cas Nov 19 '13 at 11:36
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Shutter

Category: Taking and editing screenshots

Shutter is a program for capturing and editing screenshots

Shutter is a feature-rich screenshot program. You can take a screenshot of a specific area, window, your whole screen, or even of a website – apply different effects to it, draw on it to highlight points, and then upload to an image hosting site, all within one window.
~ shutter-project.org

To install it, use the Software Center .install.
Alternatively you can run these commands in a Terminal:

sudo add-apt-repository ppa:shutter/ppa
sudo apt-get update && sudo apt-get install shutter

Shutter indicator screenshot

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Jupiter

Category: Power management

Discontinued, only works in versions before 13.04.

(Possible workaround)

A really helpful power management indicator. You can use it to change display settings as well as simple power management schemes, or to disable your touchpad or wifi adapter on laptops.
It can either run with the new applet system, or with the old notification area system.

enter image description here
This little icon has helped me a lot in keeping my laptop's temperature under control.

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2  
Jupiter has now been ported to python and it actually uses an indicator... the screenshot should be updated :) –  Alin Andrei Apr 13 '12 at 11:06
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Dropbox

Category: Cloud Computing

Dropbox

Download and install the deb.

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Weather Indicator

Category: Weather Forecasting

Warning. This indicator is not being updated anymore and will probably not work in current versions of Ubuntu.
UPDATE ! Development continues! https://launchpad.net/weather-indicator/+announcement/11516

Displays the current/extended weather, multiple locations and notifications support.

Weather Indicator

indicator-weatherInstall indicator-weather in Ubuntu Software Centre

or project's PPA: ppa:weather-indicator-team/ppa
Please note! The latest builds of Weather Indicator require updated versions of pywapi, Python Weather API: ppa:pywapi-devel/ppa

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1  
@Glutanimate It does have that unfortunate habit and occurs with latest version, ofter after resuming from standby. I think it is upstream issue so developer can do little about it. It seems to do it less after switching to the Yahoo feed. Bugs List –  Cas Sep 24 '12 at 0:37
6  
my-weather-indicator (launchpad.net/my-weather-indicator) is better maintained and more stable that this one. –  HDave Oct 17 '12 at 22:10
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enter image description here @ The Killer @

If you want video tutorial Jupiter Broadcasting

Peer To Peer (P2P) Sync and Share Ubuntu

------------------------------------------------------------------------------------------

Indicator

enter image description here

enter image description here

enter image description here

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Virtualbox Indicator

Category: Virtualization

Provides a quick way to launch virtual machines.

For Precise onwards (Python 3 version):

indicator-virtual-box

PPA: ppa:thebernmeister/ppa Package: indicator-virtual-box

For Natty, Maverick & Lucid (Vala version)

indicator-virtualbox

PPA: ppa:michael-astrapi/ppa Package: indicator-virtualbox

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Tomate

Category: Concentration / Get things done

This is a simple indicator that helps keep concentrated. You start it before a complicated problem and you have to keep concentrated for at least 10 minutes after it becomes green you can continue to work on your problem but you get thing done.

You can find more information about this concentration technique on the official website.

Often when you start to work, you continue and tomate give you feedback of the time it took to fix the task.

tomate

  1. Download the latest version
  2. Extract the files
  3. Run tomate.py

EDIT: If direct download does not work the first time, wait a little and try again. Instead you can also run:

git clone https://git.gitorious.org/~natim/tomate/natim-tomate.git
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Sound Switcher Indicator allows for easy switching of the default sound input ("source" in PulseAudio terms) and output ("sink") with just a couple of clicks:

In order to install it:

sudo add-apt-repository ppa:yktooo/ppa
sudo apt-get update
sudo apt-get install indicator-sound-switcher

After that simply find and run Sound Switcher Indicator.

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enter image description here

Privacy Indicator can be used to enable or disable:

  • Dash online search results;
  • Zeitgeist logging (so when you disable
    this, all files you access won't be logged by Zeitgeist and thus,
    will not show up in Dash or any other applications that make use of
    Zeitgeist);
  • show real name on the Unity panel.

The indicator also supports clearing the Zeitgeist log and recent files (from the new Nautilus 3.6 sidebar, etc.).

To install it in Ubuntu 12.10 or 13.04:

sudo add-apt-repository ppa:diesch/testing
sudo apt-get update
sudo apt-get install indicator-privacy

More info: Unity Privacy Indicator: Quickly Enable Or Disable Dash Online Search Results Or Zeitgeist Logging

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Places Indicator

Category: File management

This is a simple indicator that shows common folders and all bookmarks, the indicator updates automatically if bookmark was added or removed.

Places Indicator screenshot

  1. Download the latest version
  2. Extract the files
  3. Run indicator-places.py
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Indicator Stickynotes

Category: Utilities, Other

An indicator to add Sticky Notes capability to Unity desktop. Can add multiple notes, hide them all or show them at the same time.

Desktop with StickyNotes

To install:

sudo add-apt-repository ppa:umang/indicator-stickynotes
sudo apt-get update
sudo apt-get install indicator-stickynotes
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Mounty

Category: Mounting/Drive Removal

Mounty is a very simple indicator applet you can use to mount CD / DVD images. It supports ISO, IMG, BIN, MDF and NRG and besides mounting, it can also burn the images to a CD/DVD.

ppa:tldm217/tahutek.net and install package mounty

Follow the directions on this page: https://launchpad.net/mounty

You can get the .deb package by running

sudo add-apt-repository "deb http://download.learnfree.eu/repository/skss / #SKSS"
wget http://download.learnfree.eu/repository/skss/repo.pub.asc -q -O- | sudo apt-key add -
sudo apt-get update ; sudo apt-get install mounty

This is the official Mounty repository

The original PPA no longer works for some reason but this did the trick.

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Skype indicator

Screenshot

sudo add-apt-repository "deb http://archive.canonical.com/ $(lsb_release -sc) partner"
sudo apt-get update
sudo apt-get install skype
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My Weather Indicator

Category: Weather Forecasting

this is an indicator that will show weather information in your area, as well as other valuable information such as time of sunrise, sunset and moon phase

enter image description here

Find out whether you need to wear a jacket, a t-shirt or a waterproof suit... If you click on the indicator, you will get more information about, humidity, dew point, feels like, wind velocity and wind direction, weather condition.

My-Weather-Indicator informs you about sunrise ans sunset time, and the lunar phase

Information

You can get the forecast for your area for next three days:

The forecast

You can get information of the weather of two cities at the same time:

Two cities

sudo add-apt-repository ppa:atareao/atareao
sudo apt-get update
sudo apt-get install my-weather-indicator
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