Multiples of bytes

Multiples of bytes
SI decimal prefixes			IEC  binary prefixes
Name (Symbol)	Standard SI	Binary usage	Name (Symbol)	Value
kilobyte  (kB)	103	210	kibibyte  (KiB)	210
megabyte  (MB)	106	220	mebibyte  (MiB)	220
gigabyte  (GB)	109	230	gibibyte  (GiB)	230
terabyte  (TB)	1012	240	tebibyte  (TiB)	240
petabyte  (PB)	1015	250	pebibyte  (PiB)	250
exabyte  (EB)	1018	260	exbibyte (EiB)	260
zettabyte  (ZB)	1021	270	zebibyte  (ZiB)	270
yottabyte  (YB)	1024	280	yobibyte  (YiB)

First Ruby on Rails (ROR)

Installation 


http://www.ruby-lang.org/en/downloads/

Download ruby package
$ tar -xvzf ruby-1.9.1-p376.tar.gz
$ cd ruby-1.9.1-p376/
$ . /configure
$ make
$ make install

download rubygems
$ tar -xvzf rubygems-1.3.6.tgz
$ cd rubygems-1.3.6/

$ ruby setup.rb

$ gem install rails

Creating first project 

$ rails firstpro

Above step will create project with following dir structure

drwxr-xr-x 6 gt gt  4096 2010-05-08 15:42 app

drwxr-xr-x 5 gt gt  4096 2010-05-08 15:42 config

drwxr-xr-x 2 gt gt  4096 2010-05-08 15:42 db

drwxr-xr-x 2 gt gt  4096 2010-05-08 15:42 doc

drwxr-xr-x 3 gt gt  4096 2010-05-08 15:42 lib

drwxr-xr-x 2 gt gt  4096 2010-05-08 15:42 log

drwxr-xr-x 3 gt gt  4096 2010-05-08 15:46 nbproject

drwxr-xr-x 5 gt gt  4096 2010-05-08 15:42 public

-rw-r--r-- 1 gt gt   307 2010-05-08 15:42 Rakefile

-rw-r--r-- 1 gt gt 10011 2010-05-08 15:42 README

drwxr-xr-x 3 gt gt  4096 2010-05-08 15:42 script

drwxr-xr-x 7 gt gt  4096 2010-05-08 15:42 test

drwxr-xr-x 6 gt gt  4096 2010-05-08 15:42 tmp

drwxr-xr-x 3 gt gt  4096 2010-05-08 15:42 vendor

ROR works in MVC architecture put your files inside apps accordingly 

drwxr-xr-x 2 gt gt 4096 2010-05-08 15:42 controllers

drwxr-xr-x 2 gt gt 4096 2010-05-08 15:42 helpers

drwxr-xr-x 2 gt gt 4096 2010-05-08 15:42 models

drwxr-xr-x 3 gt gt 4096 2010-05-08 15:42 views

use the script inside the script folder to perform rails operations 

rwxr-xr-x 1 gt gt  159 2010-05-08 15:42 about

-rwxr-xr-x 1 gt gt  104 2010-05-08 15:42 console

-rwxr-xr-x 1 gt gt  106 2010-05-08 15:42 dbconsole

-rwxr-xr-x 1 gt gt  104 2010-05-08 15:42 destroy

-rwxr-xr-x 1 gt gt  105 2010-05-08 15:42 generate

drwxr-xr-x 2 gt gt 4096 2010-05-08 15:42 performance

-rwxr-xr-x 1 gt gt  103 2010-05-08 15:42 plugin

-rwxr-xr-x 1 gt gt  103 2010-05-08 15:42 runner

-rwxr-xr-x 1 gt gt  103 2010-05-08 15:42 server

To Run server 

$ script/server 

=> Booting WEBrick

=> Rails 2.3.5 application starting on http://0.0.0.0:3000

=> Call with -d to detach

=> Ctrl-C to shutdown server

[2010-05-08 15:43:20] INFO  WEBrick 1.3.1

[2010-05-08 15:43:20] INFO  ruby 1.9.1 (2009-12-07) [i686-linux]

[2010-05-08 15:43:25] INFO  WEBrick::HTTPServer#start: pid=31445 port=3000

Check in your browser for the link below (Output)

http://localhost:3000

if you get ROR page then your ROR is working successfully else check the steps above 

Give a try :)

In my next post we can see how to create simple ROR application 

Netbeans Macro

http://wiki.netbeans.org/FaqEditorMacros