Thursday, July 31, 2008

Linux Commands

1. Use cd to change directories
Cd .. – To move up one directorycd /usr/games
Cd\ - To move up all directories

2. Use clear to clear the command prompt
3. Use date to set your server's date and time and view the date and time
To set the Date & time
date MMDDhhmm
4. Use df to check disk space
Ex: df -h –T
5. Use finger to see who's on the system
(Get detailed information about a person who has access to the system.)
6. Use logout to quit using the system
7. Use ls to list files and directories
8. Use man to pull up information about a Linux command
Ex: man -k finger
man ls
9. Use more to read the contents of a file Ex: more test.txt
10. Use passwd to change your current password
11. Use pwd to list the name of your current directory
12. Use nano to start a text editor
The last step is to quit nano, {ctrl} x. If everything has gone well we should be back at the command prompt.
13. The du command prints a summary of the amount of information you have stored in your directories on the mounted disks.
syntax: du [options] path
-s print the sum of bytes in your directories
-a print a line for each file in your directory
14. The grep command searches text files for a particular word or string of words.
syntax: grep textstring filename(s)
15. head: prints the beginning of a text file
head -n 20 test.txt – print first 20 lines
16. tail: prints the end of a text file
tail -n 20 Test.txt –Print last 20 lines
17. Nice: runs programs/commands at a lower system priority 18. Nohup: runs nice programs even when you’re logged off the system
Ex: nice nohup c program.c .
19. The ps command displays all of the existing processes.
20. To kill a process that is stopped, type: kill pid (Process ID)
21 The stty command allows you to view a listing of your current terminal options
22. To contact someone who is on the system, at the prompt you type: talk accountname
23. Type: mesg n. This prevents others from using talk to reach you.
24. Type: w to view all users’ processes
25. Type History to view previously type or use commands
History > Historycmd.txt –Copy history commands in to file
26. Netstat command simply displays all sockets and server connections
27. ifconfig Command line tool to configure or check all network cards/interfaces
28. rm Removes/deletes directories and files
29. nslookup Checks the domain name and IP information of a server Ex: nslookup
30. route - Lists the routing tables for your server Ex: route –v
31. cal Display a calendar
32. chmod Change access permissions
Ex: chmod 777 -Give full permision
33. ls view files of directory
34. ls -F view files of directory
35. ls -l show details of files and directory
36. ls -a show hidden files
37. ls *[0-9]* show files and directory containing numbers
38. mkdir test create a directory called 'test'
39 tree show files and directories in a tree starting from root
40. clock –w save date changes on BIOS

Wednesday, July 23, 2008

Microsoft Headquarters

Microsoft Corporation is an American multinational computer technology corporation. It develops, manufactures, licenses, and supports a wide range of software products for computing devices.Microsoft's best-selling products are the Microsoft Windows operating system and the Microsoft Office suite of productivity software.
About Microsoft Corporation

Type Public (NASDAQ: MSFT)
Founded Albuquerque, New Mexico (April 4, 1975)
Founder Bill Gates
Paul Allen
Headquarters Redmond, Washington
Area served Worldwide
Key people Bill Gates (Chairman)
Steve Ballmer (CEO)
Ray Ozzie (CSA)
Craig Mundie (CRSO)
Industry Computer software
Research and development
Computer hardware
Video games
Products Microsoft Windows
Microsoft Office
Microsoft Servers
Developer Tools
Microsoft Expression
Business Solutions
Games& Xbox 360
Windows Live
Windows Mobile


Reference: - Wikipedia

Oracle Head Office

Oracle Corporation is an American multinational corporation that specializes in developing and marketing enterprise software products, particularly database management systems. In 2007 Oracle ranked third on the list of largest software companies in the world, after Microsoft and IBM.

About Oracle Company
Type Public (NASDAQ: ORCL)
Founded California, USA (1977)[1]
Headquarters Redwood City, CA
Key people Lawrence (Larry) J. Ellison, Co-founder and CEO
Jeffrey O. Henley, Chairman
Safra A. Catz, President/CFO
Charles Phillips, President
Industry Software & Programming
Products Oracle Communications
Oracle Database
Oracle Rdb
Oracle eBusiness Suite
Oracle Application Server
Oracle JDeveloper
Oracle Application Framework
Oracle ADF
Oracle Beehive
Oracle Collaboration Suite
Oracle Enterprise Manager
Oracle Application Express
Oracle Designer
Oracle Developer Suite
Employees 73,320 (as of June 22 2008)
Reference: - Wikipedia

Sunday, July 20, 2008

Sinhala mark in Internet –Mozilla Firefox 3.0

The World fastest and safest web browser Mozilla fire fox 3.0 released in sinhala language.
This device is developed using free and open source softwares. Therefore any one can add new features or edit this.
Peaole can download this browser free of charge and can be transferred to any number of copies to anyone.
Some features in mozilla firefox 3.0
- Highest security
- Faster
- Resize pages
- Save computer memory
- If in necesery one can save password
- Checking Dpellings and Grammer
- Can be used as a library
- Can be used in one’s need

Do you know?
8 million people download this web browser a day which established a new world record.
According to the sources up to 2008 June 18- 8,002,530 download this Morzilla Fire Fox 3.0 web browser.

To download Sinhala Mozilla Fire Fox 3.0

To install sinhala fonts

Thursday, July 10, 2008

Free Java IDE, Free Java Editors

1. NetBeans (Sun Microsystems)
2. JBuilder (Inprise, Borland)
3. JDeveloper (Oracle)
4. Visual J++ (Microsoft)
5. Symantec Café
6. Rogue Wave Software’s Jfactory
7. Penumbra Softwares’s Mojo
8. Eclipse
9. Gel
10.DrJava Java IDE
11.BlueJ Java IDE
12.JIPE Java IDE
13.JCreator Java IDE LE (Light Edition)