LINUX fresh user know this tricks

HELLO  FRIEND TODAY  I WILL SHOW YOU  SOME LINUX TIPS AND TRICKS. BUT I KNOW THAT WHEN I TEACH  YOU YOU CANNOT UNDERSTAND IT PROPERLY SO MANY QUESTION WILL ARISE IN UR MIND STOP NOW ALL DISCUSSION HERE AND JUST DOWNLOAD  ALL THE BELOW GIVEN.   

WHICH IS VERY USE FULL FOR A BEGINNER Of LINUX

                               link download

K Billing

K Billing software

kBilling is a great billing / invoice program for any business. Whether you're sending bills for your professional services, running a retail store, invoicing customers for repair work, or running an Internet business, k Billing can simplify your billing and save you time and money. You don't have to be - or hire - an accountant to use k Billing. You can install k Billing and increase your productivity immediately!