Monday, September 26, 2011

Android ARM Assembly by Vikram Aggarwal

Today I read an interesting article about Android.
The article is written by the developers Vikram Aggarwal, a software engineer at Google.
This article - tutorial consists of a series on learning ARM assembly on Android.
Its subject is "...calling Assembly code from Android applications".
The tutorial contains the necessary source code and details for the reader to understand how it works.
For those who have never used Gas (GNU Assembler), this article is of interest much.
I wonder if there is anyone interested in the Fedora community to write Android applications.
This article can be read here.

Saturday, September 24, 2011

Creating folders and documents with gdata module

Today I played with gdata python module.
The problem that I solved it:
creating folders and documents in your Gmail account.
First, you need to install the gdata module.
In fedora I used:
yum install python-gdata.noarch 
Here are the first lines of source code that creates a folder named test-fedora
Python 2.7.1 (r271:86832, Apr 12 2011, 16:16:18) 
[GCC 4.6.0 20110331 (Red Hat 4.6.0-2)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import
>>> my.ClientLogin('','your-password')
>>> my.CreateFolder('test-fedora')
I tried to automate the process of creating folders and I used a list and instruction for
>>> folders=['aaa','bbb','ccc']
>>> for f in folders:
...     my.CreateFolder(f)
To create a document to write more lines of code.
This is because there are many types of documents
>>> new_entry = gdata.GDataEntry()
>>> new_entry.title = gdata.atom.Title(text='fedora-test')
>>> category = my._MakeKindCategory(
>>> new_entry.category.append(category)
>>> created_entry = my.Post(new_entry, '/feeds/documents/private/full')
Here's a simple solution to avoid loss of mail password.
>>> import getpass
>>> username = raw_input('Please enter your username: ')
Please enter your username: user1
>>> password = getpass.getpass()
>>> print username
>>> print password
I hope you will use this

Thursday, September 15, 2011

The list of linux tutorials ...

The last time I wrote small tutorial for site.
These tutorials have covered several areas.
Here are targeting Linux.
The indication of a denial of service (DoS) attack...
How to display memory in real time on Linux system...
Change settings and passwords in Windows using Lin...
How to change bash custom prompt ?
How to use the import command to take screenshots?
Linux commands : "find" and the option "empty"
Create html file with bash script.
Simple bash script to create folders, files and im...
Using wget tool
error: dd: opening `/dev/sdb1': Permission denied...
error: 'memset' was not declared in this scope
Installing and configuring the Eclipse IDE - Googl...
How to set up an external webrowser on Eclipse IDE
Fedora - Install Skype
Modifying shortcuts keys on Bluefish 1.0.7
Fedora - How we can get movies from youtube.
Fedora 12 - How can we run one script when system ...
Linux Text-To-Speech Tutorial
Geany and regular expressions.
Yumex on Fedora
Assign keys on Linux.

I will try to write more tutorials about Linux...

Saturday, September 10, 2011

Fedora 15 : Extracting rar files

The unrar package can be installed from here.
The unRAR utility is a freeware program, distributed with source code and developed for extracting, testing and viewing the contents of archives created with the RAR archiver version 1.50 and above.


$ unrar

UNRAR 3.92 freeware      Copyright (c) 1993-2010 Alexander Roshal

Usage:     unrar  - -  

  e             Extract files to current directory
  l[t,b]        List archive [technical, bare]
  p             Print file to stdout
  t             Test archive files
  v[t,b]        Verbosely list archive [technical,bare]
  x             Extract files with full path

  -             Stop switches scanning
  ad            Append archive name to destination path
  ai            Ignore file attributes
  ap      Set path inside archive
  c-            Disable comments show
  cfg-          Disable read configuration
  cl            Convert names to lower case
  cu            Convert names to upper case
  dh            Open shared files
  ep            Exclude paths from names
  ep3           Expand paths to full including the drive letter
  f             Freshen files
  id[c,d,p,q]   Disable messages
  ierr          Send all messages to stderr
  inul          Disable all messages
  kb            Keep broken extracted files
  n       Include only specified file
  n@            Read file names to include from stdin
  n@      Include files listed in specified list file
  o[+|-]        Set the overwrite mode
  or            Rename files automatically
  ow            Save or restore file owner and group
  p[password]   Set password
  p-            Do not query password
  r             Recurse subdirectories
  sl      Process files with size less than specified
  sm      Process files with size more than specified
  ta      Process files modified after  in YYYYMMDDHHMMSS format
  tb      Process files modified before  in YYYYMMDDHHMMSS format
Works well.