Ubuntu Tips And Tricks

Speed up your Ubuntu 12.04 with preload

Preload is nice little application that could make your linux system a lot faster. Preload is an adaptive readahead daemon. It monitors applications that users run, and by analyzing this data, predicts what applications users might run, and fetches those binaries and their dependencies into memory for faster startup times.

Preload packages are available for almost all linux distributions. And it is available by default in the Synaptic Package Manager and Ubuntu Software Center in Ubuntu. Alternatively, you can install it via Terminal. Type this command

sudo apt-get install preload

Thats it. Preload will run silently in the background. If you want to further tweak Preload, conf file is available at /etc/preload.conf.

Note that installing preload will not make your system boot faster and that preload is a daemon that runs with root priviledges.

And see the difference.

BackBox Linux

BackBox is a Linux distribution based on Ubuntu. It has been developed to perform penetration tests and security assessments. Designed to be fast, easy to use and provide a minimal yet complete desktop environment, thanks to its own software repositories, always being updated to the latest stable version of the most used and best known ethical hacking tools.

Download

How to: Enable screen lock in Linux Mint 13

In Linux Mint 13, the screen lock feature is disabled by default. After being idle for a while, the screen will be dimmed and you can re-activate it by moving the mouse or hit a key. For security reasons, you may want to enable the screen lock feature. Here is how to do it:

Hit Alt + F2 and run "mateconf-editor" to open the Mate configuration window. Go to apps > mate-screensaver then check the line "lock_enabled". You can also edit the line idle_delay to change the minutes of inactivity time before the screen lock is activated.

Malys Black/Blue Icons Updated to version 1.5 for Ubuntu/Linux Mint via PPA

Install Malys Blue/Black Icons on Ubuntu 12.10/12.04/11.10/11.04/10.10/10.04/Linux Mint/or any Ubuntu based Distribution

Malys UniBlue/UniBlack Icons updated to ver1.5 and added new icons in this version. For other distro's check source links.
Install Tools to change icons: Gnome-Tweak-Tool, Ubuntu-Tweak

Malys UniBlue Icons

To install Malys-Uniblue-Icons on Ubuntu/Mint open Terminal (Press Ctrl+Alt+T) and copy the following commands in the Terminal:

sudo add-apt-repository ppa:noobslab/icons
sudo apt-get update
sudo apt-get install malys-blue-icons

Malys UniBlack Icons

To install Malys-UniBlack-Icons on Ubuntu/Mint open Terminal (Press Ctrl+Alt+T) and copy the following commands in the Terminal:

sudo add-apt-repository ppa:noobslab/icons
sudo apt-get update
sudo apt-get install malys-black-icons

Google Plus Gnome Shell Theme

Half-left has designed another great Gnome Shell theme and this time it is based on the look and feel of the social network website, Google+.

Download Google+ Gnome Shell Theme

Instructions

Make sure you have user-theme-extension installed. Load the GNOME Tweak Tool (available in Ubuntu Software Center) and go to "Theme" section. Click the Shell Theme box and locate the zip file downloaded from link above. Select the theme in the drop down box.

source: http://www.ubuntuvibes.com

How To Change Blogger Icon

here are the steps to do it:

1. Prepare an image, can be JPG or PNG format. I suggest PNG format because its size will be smaller by a 4:1 ratio. It means that a 10 Kb JPG image will be a 2.5 Kb in PNG format. Also make sure the size is small like 20 x 20 pixels or less, so the file will be smaller in size and won't make your blog loads slower.

If it's difficult for you to edit a small image, you can make a bigger one first, like 200 x 200 pixels or more, and after finish, you can skew it smaller. Microsoft Paint can do it for you easily.

2. Upload the image to an image hosting service, like the free PhotoBucket. Then, obtain the direct link to your image for the next step. You can use another image hosting service if you like, just remember to get the direct link.

3. Add this bold tags to your template. To access it, click "edit html" in "layout" section. Put them in head section, between "title" tag and "b:skin" tag. If you face difficulties in finding the tag, just use the find tool in your browser. In Mozilla Firefox, the shortcut is ctrl+f. If you use another browsers, apply with adaptation.

<title><data:blog.pagetitle>
<link href='put the direct URL of your image here' rel='shortcut icon' type='image/vnd.microsoft.icon'/>
<b:skin>

Save and done! Visit your blog, open a few tab, and you should see your new icon there.

source

Install Black-Amber Theme, Dragon-Equinox Theme, Gnombiance Theme in Ubuntu 11.10 Oneiric Ocelot/Linux Mint 12 Lisa (Gtk 2/3, Gnome Shell, Unity)

First of all install Gnome Tweak Tool to change Theme and Icons.

1 - Dragon Equinox

Dragon Equinox Theme is Compatible with (Gnome Shell 3.2.1 - 3.2.2.1/GTK3/GTK2)
1st Download Theme Wallpaper
2nd Install Awoken Dark Icons

To Install Theme on Ubuntu/Linux Mint open Terminal (Press Ctrl+Alt+T) and copy the following commands in the Terminal:

sudo add-apt-repository ppa:noobslab/themes

sudo apt-get update

sudo apt-get install dragon-equinox-extension dragon-equinox-theme

2 - Gnombiance Theme

Gnombiance Theme is Compatible with (Gnome Shell 3.2.1 - 3.2.2.1/GTK3/GTK2)
1st Download Theme Wallpaper
2nd Install Faenza Icons

To Install Theme on Ubuntu/Linux Mint open Terminal (Press Ctrl+Alt+T) and copy the following commands in the Terminal:

sudo add-apt-repository ppa:noobslab/themes

sudo apt-get update

sudo apt-get install gnombiance-theme gnombiance-extension

3 - Black Amber Theme

Black Amber Theme is Compatible with (Gnome Shell 3.2.1 - 3.2.2.1/GTK3/GTK2)
1st Download Theme Wallpaper
2nd Install Awoken White Icons
3rd Some theme tweaks open Terminal and enter following commands:
Following commands for lightdm:

wget http://dl.dropbox.com/u/53319850/NoobsLab.com/unity-greeter.conf.zip

unzip unity-greeter.conf.zip -d /etc/lightdm

Following commands for Unity Greeter:

wget http://dl.dropbox.com/u/53319850/NoobsLab.com/unity-greeter.zip

unzip unity-greeter.zip -d /usr/share/unity-greeter

Following commands for Unity Start Orb:

wget http://dl.dropbox.com/u/53319850/NoobsLab.com/unity-start-orb.zip

unzip unity-start-orb.zip -d /usr/share/unity/4

To Install Theme on Ubuntu/Linux Mint open Terminal (Press Ctrl+Alt+T) and copy the following commands in the Terminal:

sudo add-apt-repository ppa:noobslab/themes

sudo apt-get update

sudo apt-get install black-amber-theme black-amber-extension

Source: Astral-1 on DeviantArt

Ubuntu 12.04 Applications Shortcuts

Here are Ubuntu 12.04 Applications shortcuts. Key combos for LibreOffice, Gwibber, Shotwell, Firefox, Rhythmbox and more are covered in the comprehensive document.
To Download zip file scroll down.

Source: OmgUbuntu

Here are Unity Shortcuts which is useful for Ubuntu 12.04 Unity.

Download Unity and Apps Shortcuts

Remove White Dots from Login Screen of Ubuntu 12.04 Precise Pangolin

ome People don't like white dots in Ubuntu 12.04 Login screen, So here is a tweak you can easily remove these dots from login screen.

To Remove White Dots from Ubuntu 12.04 login Screen open Terminal (Press Ctrl+Alt+T) and copy the following commands in the Terminal:

sudo xhost +SI:localuser:lightdm
sudo su lightdm -s /bin/bash
gsettings set com.canonical.unity-greeter draw-grid false

Here are more tweaks for Ubuntu 12.04 Precise Pangolin. Important Tweaks and Some more Tweaks. That's it, Enjoy

Visit on Site http://www.noobslab.com

DownVerter - Free and fast YouTube downloader

DownVerter® allows you to choose between mkv and mp4 files to download from YouTube. You could choose to just download the file or download it convert it into MP3, AVI, 3GP, MP4, MOV or WMV format.

If you would like to see a new conversion format added please let us know by sending email to contact@downverter.com. We will analyze your request and if we see a lot of requests for a particular conversion format then we will add it.
Download YouTube videos in High Definition (HD 1080p, 720p), High Quality (HQ) Mp4 files. Automatically convert YouTube videos to MP3, AVI, 3GP, MP4, MOV, WMV for your iPod, PSP, Pocket PC or Mobile Phone!

Install DownVerter in ubuntu 11.10

First you need to download the .deb package from here Once you have deb package you can doublick to install this.