Cloud Computing Basics Part - 1

CLOUD-COMPUTING ( New Era Of Computing )

Clearly, there is a need for a baseline definition and a discussion of the many aspects comprising cloud computing.I believes that a detailed characterization of cloud computing must include three things:
1. The consumption model. Cloud computing offers a unique way to consume compute, network, and storage resources.
2. The services model. Cloud computing can be used as a platform for different activities up and down the technology stack.
3. The deployment model. Cloud computing is not a one-size-fits-all platform.Rather, there are numerous ways to deploy and utilize clouds.

Linux Basic Tutorials Part - 8

UNIX/Linux Tutorial 

UNIX Variables

Variables are a way of passing information from the shell to programs when you run them. Programs look "in the environment" for particular variables and if they are found will use the values stored. Some are set by the system, others by you, yet others by the shell, or any program that loads another program. 

Standard UNIX variables are split into two categories, environment variables and shell variables. In broad terms, shell variables apply only to the current instance of the shell and are used to set short-term working conditions; environment variables have a farther reaching significance, and those set at login are valid for the duration of the session. By convention, environment variables have UPPER CASE and shell variables have lower case names.

Linux Basic Tutorials Part - 7

UNIX/Linux Tutorial

Other useful UNIX commands  

quota

All students are allocated a certain amount of disk space on the file system for their personal files, usually about 100Mb. If you go over your quota, you are given 7 days to remove excess files.

To check your current quota and how much of it you have used, type

% quota -v