Linux

Open a new Terminal Window 
Type in the following command and hit Enter to download the installation file (Binary File).

wget

Run the command below to make the bin file executable

chmod +x GoogleEarthLinux.bin

Now we need to execute the bin file to install Google Earth.

./GoogleEarthLinux.bin

Boot up your System When the Grub screen appears choose “Ubuntu x.xx, kernal x.x.x-xx-generic (recovery mode)”. The x’s are in the place of the version numbers On the next screen select “Drop to root shell prompt” Once in the root shell prompt use the passwd command to reset your password password USERNAME Replace USERNAME with the username who’s password you...

Open a new Terminal Window 
Type in the following command

echo $SHELL

This will output something similar like below

root@local-laptop:~$ echo $SHELL
/bin/bash

It’s located in

~/.local/share/Trash/files

you can access it by typing in the command below:

cd ~/.local/share/Trash/files

By using the find command we can search for files and directories using the command line. The find command uses a raw search to find files and directories. The usage is find [PATH] [OPTIONS][SEARCH CRITERIA] Example: find /home/ -name test The example above finds all files/directories within the home directory that contain the word test Below are different common options that can be used together...

Click on the file or folder and press the key combination shift+del together in order to remove the file or folder permanently.
Please note you will need the appropriate access permissions in order to do this.

Type in the command below to go to your previous working directory

cd -

or

cd $OLDPWD

Points to remember

The “-” is short for previous working directory.
The previous working directory is defined by the shell variable $OLDPWD.
Everytime you use the cd command it sets the $OLDPWD environment variable.
Thus cd $OLDPWD is the same as cd –

Open the command line, to do this right click on the Desktop and select Create Launcher… In the Command text field type in gnome-terminal and in the Nametext field Terminal click OK A new shortcut called Terminal will appear, double click on it to Open a new Terminal window Type the following command killall gnome-panel Create another Launcher as in step one type in the command text...

Press ALT+F2 together on your Keyboard then type gconf-editor and click Run

 
On the left hand side of the window expand apps->nautilus->preferences , check the checkbox next to always_use_location_entry and close the window.

 
When you open Nautilus, the location entry will always be visible

Open a new command line window and type in the following command cat /proc/acpi/battery/BAT0/info   This will display all information about your battery present:                 yes design capacity:         7200 mAh last full capacity:      2732 mAh battery technology:      rechargeable design voltage:          11100 mV design capacity warning: 135 mAh design capacity low:     94 mAh cycle...

NOTE: Tested in Ubuntu 10.04 and 10.10
Open a new Terminal Window and type in the following command and hit Enter

gconftool-2 --set --type boolean /desktop/gnome/peripherals/touchpad/touchpad_enabled true

This should solve the issue
For more information visit 

Type in the following command

find /var/www/ -mtime -14

this will find all files that where modified within the last 14 days within the /var/www/ directory. We use the -mtime test to get all the modified files.
 
To only find .txt files that were modified within the last 14 days within the /var/www/directory we would use this command

find /var/www/ -mtime -14 | grep '\.txt'

Open a new Terminal Window
Type in the following command

sudo gedit /etc/hostname

The command above will open gedit, change your computer name and close gedit
Logout and Login with your credentials and your computer name will be changed

I’ve recently updated from Ubuntu 10.10 to 11.04 and found that whenever my screensaver activates the whole computer Freezes, I managed to solved the problem as discribed below.   Open a new Terminal Window and uninstall Gnome Screensaver by using the command below sudo apt-get remove gnome-screensaver   Then we need to kill the Gnome Screensaver process, once again in the command...

NOTE: Tried and tested in Ubuntu 11.04 Natty Narwhal   To resize a batch of images we need to use a command line tool mogrify this tool forms part of the ImageMagick Libraries To use the mogrify command line tool we will need to install ImageMagick sudo apt-get install imagemagick After the install locate the folder via the command line where the images are that need to be resized cd...

NOTE: In this example we will change the MAC address for the eth0 interface

Open your Command Line Interface
Now we are going to shutdown the eth0 Interface using the command below

ifconfig eth0 down

Now we change the Hardware Address for the eth0 interface

ifconfig eth0 hw ether 00:1d:72:dd:00:6f

Now we activate the eth0 interface again

ifconfig eth0 up

The zcat command can be used to read the contents of a compressed text file without the need to uncompress it mannually first.

zcat myCompressedFile.gz

Open a new Terminal Window
Type the following command to install nautilus-open-terminal

yum install nautilus-open-terminal

Log out and login again and when you right click on the Desktop or in your Home folder you will see that Open in Terminal will appear on the right click menu

Open a new Terminal Window and type in the following command

sudo yum groupinstall "Office/Productivity"