Bill Gates Arrested

Can you ever imagine today’s billionaire, world’s richest man and now greatest philanthropist person Bill Gates has gone to jail?

Bill Gates, Chairman and CEO of Microsoft (Retired), and the richest man in the world at over $50 Billion net worth, arrested in New Mexico 1977.

He was arrested for speeding in his Porsche car without a license and again in 1989 for suspicion of drunk driving.


Linux Commands – Funny

cat, cut, find,free, head,kill, man,nice, paste,sleep,tail, touch, watch , who – What is this!!
Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. Nowadays, Linux commonly using in Desktop machines as well as Servers.  Lots of commands are available in Linux for sysem use. Most of them can easily remember to a normal user. Some of the interesting commands in Linux as shown here.

Command Description
cat Concatenate files and print on the standard output
clear Clear terminal screen
cut Divide a file into several parts
date Display or change the date & time
echo Display message on screen
eject Eject CD-ROM
expand Convert tabs to spaces
factor Print prime factors
find Search for files that meet a desired criteria
fold Wrap text to fit a specified width
format Format disks or tapes
free Display memory usage
head Output the first part of file(s)
join Join lines on a common field
kill Stop a process from running
less Display output one screen at a time
man Help manual
nice Set the priority of a command or job
paste Merge lines of files
screen Terminal window manager
select Accept keyboard input
sleep Delay for a specified time
sort Sort text files
split Split a file into fixed-size pieces
tail Output the last part of files
test Evaluate a conditional expression
time Measure Program Resource Use
touch Change file timestamps
top List processes running on the system
watch Execute/display a program periodically
whereis Report all known instances of a command
which Locate a program file in the user’s path
who Print all usernames currently logged in
whoami Print the current user id and name (`id -un’)
yes Print a string until interrupted

Firefox Shortcut Keys

table{width:100%;border-collapse:collapse;font-size:80%;}th{background-color: #C8DEED;border:1px solid #C8DEED;}td{border:1px solid #C8DEED;}Firefox is one of the most using browser in internet world.

In Mozilla Firefox, you can use the combination of different keyboard keys to accomplish your routine task. With shortcut keys, you can speed up your surfing without lifting your hands from the keys; otherwise require a conventional mouse to select menus and buttons options. Basically keyboard shortcuts keys help you to save time and you can perform any tasks without leaving the keyboard keys.


Command Shortcut
Back Alt + ← or
Forward Alt + → or
Shift + Backspace
Home Alt + Home
Open File Ctrl + O
Reload F5 or
Ctrl + R
Reload (override cache) Ctrl + F5 or
Ctrl + Shift + R
Stop Esc.

Current Page

Command Shortcut
Go to Bottom of Page End
Go to Top of Page Home
Move to Next Frame F6
Move to Previous Frame Shift + F6
Print Ctrl + P
Save Page As Ctrl + S
Zoom In Ctrl + +
Zoom Out Ctrl + –
Zoom Reset Ctrl + 0


Command Shortcut
Find Ctrl + F
Find Again F3 or
Ctrl + G
Find Previous Shift + F3 or
Ctrl + Shift + G
Quick Find within link-text only
Quick Find /


Command Shortcut
Complete .com Address Ctrl + Enter
Complete .net Address Shift + Enter
Complete .org Address Ctrl + Shift + Enter
Delete Selected Autocomplete Entry Del
Toggle Full Screen F11
Help F1
Toggle Menu Bar (when hidden) Alt
F10Alt (KDE)
Show/Hide Add-on Bar Ctrl +
Select Location Bar F6 or
Alt + D or
Ctrl + L


Command Shortcut
Bookmark All Tabs Ctrl + Shift + D
Bookmark This Page Ctrl + D
Bookmarks sidebar Ctrl + B
Ctrl + I
Library window (Bookmarks) Ctrl + Shift + B

Windows & Tabs

Command Shortcut
Close Tab Ctrl + W
Ctrl + F4
Close Window Ctrl + Shift + W
Alt + F4
Move Tab in focus Left Ctrl + ←
Ctrl + ↑
Move Tab in focus Right Ctrl + →
Ctrl + ↓
Move Tab in focus to start Ctrl + Home
Move Tab in focus to end Ctrl + End
New Tab Ctrl + T
New Window Ctrl + N
Next Tab Ctrl + Tab or
Ctrl + Page Down
Open Address in New Tab Alt + Enter (from Location Bar or Search Bar)
Previous Tab Ctrl + Shift + Tab or
Ctrl + Page Up
Undo Close Tab Ctrl + Shift + T
Undo Close Window Ctrl + Shift + N
Select Tab 1 to 8 Ctrl + 1 to 8

Windows key keyboard shortcuts

Below is a listing of Windows keys that can be used on computers running a Microsoft Windows operating system and using a keyboard with a Windows key. In the below list of shortcuts, the Windows key is represented by “WINKEY”.

Shortcut Keys Description
WINKEY Pressing the Windows key alone will open Start.
WINKEY + F1 Opens the Microsoft Windows help and support center.
WINKEY + F3 Opens the Advanced find window in Microsoft Outlook.
WINKEY + D Brings the desktop to the top of all other windows.
WINKEY + M Minimizes all windows.
WINKEY + SHIFT + M Undo the minimize done by WINKEY + M and WINKEY + D.
WINKEY + E Open Microsoft Explorer.
WINKEY + Tab Cycle through open programs through the taskbar.
WINKEY + F Display the Windows Search / Find feature.
WINKEY + CTRL + F Display the search for computers window.
WINKEY + R Open the run window.
WINKEY + Pause / Break key Open the system properties window.
WINKEY + U Open Utility Manager.
WINKEY + L Lock the computer and switch users if needed (Windows XP and above only).
WINKEY + P Quickly change between monitor display types. (Windows 7 only)
WINKEY + LEFT ARROW Shrinks the window to 1/2 screen on the left side for side by side viewing. (Windows 7 only)
WINKEY + RIGHT ARROW Shrinks the window to 1/2 screen on the right side for side by side viewing. (Windows 7 only)
WINKEY + UP ARROW When in the side by side viewing mode, this shortcut takes the screen back to full size. (Windows 7 only)
WINKEY + DOWN ARROW Minimizes the screen.  Also, when in the side by side viewing mode, this shortcut takes the screen back to a minimized size. (Windows 7 only)

Image File extensions

Common image file extensions can be downloaded from here. Please click following link to view the file.

Click to View File

vi Commands

vi is a Visual Editor (hence the name — vi for VIsual). vi is a widely-used and popular UNIX-based text editor. Like most UNIX system interfaces and other text editors, it lets you control the system by using the keyboard rather than a combination of mouse selections and keystrokes.

Edit a File
Edit a file from command prompt vi
Edit a file from command prompt for reading only vi -R
Edit a file from within vi :e
Edit a new file from within vi, discard changes to current file :e!
Reload current file, discarding changes :e!
Go forwards a page Ctrl+F (or PgDn)
Go backwards a page Ctrl+B (or PgUp)
Move around single lines or characters Arrow keys
Save changes :w
Save changes and override protected (read-only) files :w!
Save changes and exit vi ZZ
Quit :q
Quit and discard changes :q!
Get general help :help
Get help on a command (eg. :set) :help set
Go to lines, find matching text 
Go to line 1234 (do not see typing) 1234G
Go to line 1234 (see typing) :1234
Go to start of file 1G
Go to end of file G
Find (forwards) a line containing “swordfish” /swordfish
Find (forwards) a line using a regular expression /you see .* here
Repeat last search n
Repeat last search in opposite direction N
Find (backwards) a line containing “swordfish” ?swordfish
Find (backwards) a line using a regular expression ?you see .* here
Search case insensitive (Ignore Case) :set ic
Search with case sensitivity :set noic
Wrap searches back to start of file :set wrapscan
Do not wrap searches :set nowrapscan
Insert Text
Insert after cursor i
Insert before cursor a
Insert at beginning of line I
Insert at end of line (append) A
Open (start) new line below cursor o
Open (start) new line above cursor O
Advance Deletion
Delete next 5 lines 5dd
Delete to end of line d$
Delete to start of line d0
Delete to word “swordfish” d/swordfish
Delete to the letter “x” dfx
Delete lines 10 to 20 :10,20d
Delete current line and another 5 lines :.,+5d
Delete all lines :%d
Delete current word dw
Find line containing pattern, delete it :/pattern/d
Find line containing “dog”, delete until line containing “cat” :/dog/,/cat/d
Delete from current line to line containing “foo” :.,/foo/d

Reset Joomla administrator password?

Joomla’s admin username can be easily changed with a simple MySQL query.  Open mysql console and execute the following query

UPDATE `jos_users` SET `password` = MD5( 'new_password' ) WHERE `jos_users`.`username` = "admin"

Windows Shortcut Keys

Below is a listing of all the major Windows shortcut keys

Shortcut Keys Description
Alt + Tab Switch between open applications.
Alt + Shift + Tab Switch backwards between open applications.
Alt + double-click Display the properties of the object you double-click on. For example, doing this on a file would display its properties.
Ctrl + Tab Switches between program groups or document windows in applications that support this feature.
Ctrl + Shift + Tab Same as above but backwards.
Alt + Print Screen Create a screen shot only for the program you are currently in.
Ctrl + Print Screen Creates a screen shot of the entire screen
Ctrl + Alt + Del Reboot the computer and brings up the Windows task manager.
Ctrl + Shift + Esc Immediately bring up the Windows task manager.
Ctrl + Esc Bring up the Windows Start menu. In Windows 3.x this would bring up the Task Manager.
Alt + Esc Switch Between open applications on taskbar.
F1 Activates help for current open application.
F2 Renames selected Icon.
F3 Starts find from desktop.
F4 Opens the drive selection when browsing.
F5 Refresh Contents to where you were on the page.
Ctrl + F5 Refreshes page to the beginning of the page.
F10 Activates menu bar.
Shift + F10 Simulates right-click on selected item.
F4 Select a different location to browse in the Windows Explorer toolbar.
Alt + F4 Closes Current open program.
Ctrl + F4 Closes Window in Program.
F6 Move cursor to different Windows Explorer pane.
Alt + Space bar Drops down the window control menu.
Ctrl + (the ‘+’ key on the keypad) Automatically adjust the widths of all the columns in Windows explorer
Alt + Enter Opens properties window of selected icon or program.
Alt + Space bar Open the control menu for the current window open.
Shift + Del Delete programs/files without throwing them into the recycle bin.
Holding Shift Boot Safe Mode or by pass system files as the computer is booting.
Holding Shift When putting in an audio CD, will prevent CD Player from playing.
Enter Activates the highlighted program.
Alt + Down arrow Display all available options on drop down menu.
* (on the keypad) Expands all folders on the currently selected folder or drive in Windows Explorer.
+ (on the keypad) Expands only the currently selected folder in Windows Explorer.
– (on the keypad) Collapses the currently selected folder in Windows Explorer.

Ubuntu Linux: How do I install .deb packages?

dpkg is a tool to install, build, remove and manage packages. dpkg itself is controlled entirely via command line parameters. For example -i use to install .deb file.

How do I install .deb file?

To install package called package.deb type the following command:
Go to directory where package.deb is kept. For example if it is in /tmp directory:

$ cd /tmp

Type the following command:

$ sudo dpkg -i package.deb

VI Editor Tips

The VI editor is a screen-based editor used by Linux/Unix users. The VI editor has powerful features to aid programmers.  VI has two modes insertion mode and command mode.  The editor begins in command mode. Insertion mode begins upon entering an insertion or pressing ‘i’ in keyboard. [ESC] returns the editor to command mode.

Following tips may be helpful for programmers / content writers.
Execute the command from VI Editor command mode. (press Esc, If Insert mode)

Insert space/character between 2 adjacent characters

Example 1
‘LinuxFor’ becomes ‘Linux For’ (Sentence Case)

:%s/\([a-z]\)\([A-Z]\)/\1 \2/g

Example 2
‘Kerala government’ becomes ‘Kerala Governemnt’

:%s/\([a-z]\) \([A-Z]\)/\1 \U\2/g

Removes all lines starts with a word/patterrn.

Removes all lines begin with ‘Ele’


Removes all lines end with ‘are’


Removes blank lines


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