In Windows there is the keyboard combination to kill the process: that CTL+ALT+DEL.

In Linux you can do it in some other ways.

1. System Monitor:

go to all Programmes and find System Monitor. Select the Programme to be stopped. Then “Kill the Process”.

2. PS Command:

The kill command works together with the ps command

With the ps command (ps stands for “process status”) you find out the identity of the program you want to get rid of.
Then kill will finish it off.

Here’s how you do it:

Open terminal and type: ps ux

This will show a listing of processes similar to:

USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
jhaas 3064 0.1 3.6 18324 9088 ? S 17:55 0:00 /usr/bin/gnome-session
jhaas 3107 0.0 0.3 3128 968 ? S 17:55 0:00 /usr/bin/ssh-agent /etc/X11/xinit/Xclients
jhaas 3112 0.1 2.9 11208 7376 ? S 17:55 0:00 /usr/libexec/gconfd-2 11
….

If you want to terminate for example the gnome-session process, find out the process identifier (PID)(here it is 3064)
and then type in the terminal:

kill -9 3064.
The -9 will ensure “execution”.

It will close the running Skype Programme.

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JDownloader is free download manager written in Java and it’s cross-platform. Its developer community is very huge and trying to make it as easy and fast as possible. It allows user to start, stop or pause downloads, set bandwith limitations, auto-extract archives and much more. It offers to create a list of files and download them all at the same time. It’s an easy-to-extend framework that can save hours of valuable time every day!
JDownloader allows quick, efficient and the automatic downloading of files and split files from one-click hosting sites such as RapidShare etc.. JDownloader supports the use of premium accounts with captcha. Certain parts of JDownloader are open source, but other parts are closed-source. It has Flashgot and HJSplit integration.

Features:

Cross-Platform. (Linux, Microsoft Windows, Mac, etc.); runs on Java 1.5 or higher
24-hour support
Download several files in parallel
Download with multiple connections
Can automatically solve some CAPTCHAs with its own OCR module (JAntiCaptcha)
Automatic extractor (including password list search) (RAR archives)
Decrypt RSDF, CCF and DLC Container files
About 300 decrypt plugins for many services. For example, sj.org, UCMS, WordPress, and RLSLog.
Supports about 110 one-click hosters
Can automatically acquire a new IP address to save waiting time (1400 routers supported)
Web update
Integrated package manager for additional modules (e.g., Web interface, Shutdown)
Theme support
Multilingual

Open in Terminal:

sudo add-apt-repository ppa:jd-team/jdownloader
sudo apt-get update
sudo apt-get install jdownloader-installer

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Shotcut is an open-source, free and cross-platform video editing software for Linux, Mac OS X, and Windows. Dan Dennedy, started Shotcut project in 2011 and it is developed on the MLT Multimedia Framework. Video editing has been never easy but Shotcut is an user-friendly and simple video editor that gives you tons of functions and features to edit/manage your videos with just mouse clicks, but do not under estimate this product because it has complex functions too that many paid product offers.

Features of Shotcut:

Support for 4K resolutions
Supports oodles of audio and video formats and codecs thanks to FFmpeg
Supports many image formats such as BMP, GIF, JPEG, PNG, SVG, TGA, TIFF as well as image sequences
Frame-accurate seeking for many formatsmulti-format timeline: mix and match resolutions and frame rates within a project
Webcam and screen capture including background capture to capture a Shotcut session
Audio capture
Network stream playback (HTTP, HLS, RTMP, RTSP, MMS, UDP)
Blackmagic Design SDI and HDMI for input and preview monitoring
Drag-n-drop files from file manager
Audio scopes: peak meter, waveform, spectrum analyzer
Flexible UI through dock-able panels
Capture (record) SDI, HDMI, webcam (V4L2), JACK audio, PulseAudio, IP stream, X11 screen.
Stream (encode to IP) files and any capture source
Batch encoding with job control
Unlimited undo and redo for playlist edits including a history view
OpenGL GPU-based image processing with 16-bit floating point linear per color component
Multi-core parallel image processing (when not using GPU and frame-dropping is disabled)
Eye dropper tool to pick neutral color for white balancing
HTML5 (sans audio and video) as video source and filters
Complete list of features are available here.

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The new Linux Mint 17.3 “ROSA” is ready to use. Upgrading is relatively easy.
In the Update Manager, click on the Refresh button to check for any new version of mintupdate and mint-upgrade-info.
If there are updates for these packages, apply them.

1.) Launch the System Upgrade by clicking on “Edit->Upgrade to Linux Mint 17.3 Rosa”.

2.) Follow the instructions on the screen.

3.) Once the upgrade is finished, reboot your computer.

4.) Update the Kernel..

5.) Update the Grub : with the following command: “sudo update-grub”.

More infos at:
http://blog.linuxmint.com/?p=2955
https://mintguide.org/system/548-official-update-linux-mint-from-17-2-to-17-3-rosa.html

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