Linux Tips

Go is an open source project, distributed under a BSD-style license . This document explains how to check out the sources, build them on your own machine, and run them. First of all you need to set some Environment variables The Go compilation environment depends on three environment variables that you should set in your .bashrc or equivalent, plus one optional variable: $GOROOT The root of the Go tree. Typically this is $HOME/go but it can be any directory. $GOOS and $GOARCH The name of the target operating system and compilation architecture. Choices for $GOOS are linux, darwin (Mac OS X 10.5 or 10.6), and nacl (Native Client, an incomplete port). Choices for $GOARCH are amd64 (64-bit x86, the most mature port), 386 (32-bit x86), and arm (32-bit ARM, an incomplete port). The valid combinations are linux/amd64, linux/arm, linux/386, darwin/amd64, darwin/386, and nacl/386. $GOBIN (optional) The location where binaries will be installed. If you set $GOBIN, you need to ...

Google has released its Stressful Application Test , known by its Unix name as stressapptest. According to Google, Stressful Application Test, which has been used inside the company for sometime, can be used for memory stress testing, hardware qualification and debugging, memory interface tests and disk testing. The test attempts to create realistic high load situations by maximizing randomised traffic to memory from processor and I/O. The developers advise users that running stressapptest on a live system "could cause other applications to become extremely slow or unresponsive". More details about the Stressful Application Test can be found in the Introduction and User Guide . Stressful Application Test 1.0.0 is available to download from Google Code and is released under version 2.0 of the Apache License . An installation guide is also available. Original post: http://www.h-online.com/open/news/item/Google-releases-memory-stress-test-tool-832987.html

You can search Google.com from the Linux command line without using a command line web browser like lynx or Elinks. All u need is the curl and html2text packages installed. Then issue the following command: curl -A Mozilla http://www.google.com/search?q=Dipin+Krishna |html2text -width 60 where you can replace Dipin Krishna with another keyword of your choice. The results will be displayed in your console application with a width of 60. Few other examples: curl -A Mozilla http://www.google.com/search?q=how+to+install+ubuntu |html2text -width 80 curl -A Mozilla http://www.google.com/search?q=install+gtalk+in+ubuntu |html2text -width 100

This is a port of Tesseract OCR engine that supports Indic script. The aim of this project is to add Indic script support to the Tesseract OCR engine, which currently does not support connected script such as devnagri. This includes adding some routines to the existing code base, training the engine with sample images and then testing for accuracy for subsequent debugging and refinement in the algorithms. Tools and used software Tesseract OCR engine 2.03 http://code.google.com/p/tesseract-ocr/ Gimp 2.2.17 http://www.gimp.org/ bbtesseract (GUI for editing training data, such as box files) 0.5.34 http://code.google.com/p/bbtesseract/ Project Plan: Take the input image and then manipulate it in a manner so that it then fit to be processed by the Tesseract OCR engine. For devnagri scripts, it translates to clipping the maatra(shironaam) between successive characters. Online Documentation: http://code.google.com/p/tesseract-ocr/wiki/TesseractProjects , http://tesseract-ocr.repairfaq.or...

Tesseract-ocr was an OCR Engine that was developed at HP Labs between 1985 and 1995... and is now at Google. The Tesseract OCR engine was one of the top 3 engines in the 1995 UNLV Accuracy test. Between 1995 and 2006 it had little work done on it, but it is probably one of the most accurate open source OCR engines available. The source code will read a binary, grey or color image and output text. A tiff reader is built in that will read uncompressed TIFF images, or libtiff can be added to read compressed images. Important Download Information: The language data files are separate from the code! See the ReadMe wiki for installation and usage information! Additional installation and usage information can be found in the FAQ wiki. Supported Platforms The developers are regularly testing on the following platforms: Ubuntu 6.06 (x86/32, x86/64) Ubuntu 6.10 (x86/32, x86/64) Windows (x86/32) with Visual C++ Express 2008 The upcoming 3.00 release will probably include: Page layout analysi...

Google plans to launch the Google Chrome OS in the second half of 2010, an operating system designed from the ground up to run the Chrome web browser on netbooks. Google Chrome OS is built to run on both x86 architecture chips and ARM chips, like the ones increasingly found in netbooks. It is also working with multiple OEMs to get the new OS up and running next year. This Chrome OS will be lightweight and fast just like the browser itself. But also just like the browser, it will be open-sourced. Google says the software architecture will basically be the current Chrome browser running inside “a new windowing system on top of a Linux kernel.” So in other words, it basically is the web as an OS. And applications developers will develop for it just as they would on the web. This is similar to the approach Palm has taken with its new webOS for the Palm Pre, but Google notes that any app developed for Google Chrome OS will work in any standards-compliant browser on any OS. Chrome OS will be...

Gears is a plug-in that extends your browser to create a richer platform for web applications. For example, webmasters can use Gears on their websites to let users access information offline or provide you with content based on your geographical location. To install Gears, visit http://gears.google.com. Gears was designed to be used on both Google and non-Google sites. A number of web applications currently make use of Gears, including two Google products: Google Reader and Google Docs. Additionally, Zoho and Remember the Milk have been using Gears since its original launch. If you're running Windows Mobile on your cellphone, Picasa Web Albums also makes use of Gears. Gears works with a select group of sites that are specifically designed for compatibility. When you visit a site that's configured to work with Gears, you should see a message stating "The website below wants to use Gears." If you'd like to allow the use of Gears on this site, simply check the box ne...

It is confirmed: Ubuntu can run Android applications. As advanced a few days ago, has confirmed that Canonical is working on developing an environment that will allow the execution of native Android application in Ubuntu. This is confirmed by what was only a rumor a few days ago to Ubuntu and open up new possibilities, most interesting, since Android is expected to soon become a reference platform for mobile devices. The advantages of using this environment and its applications in Ubuntu is very good news. This project is in its infancy and not yet available, but hope to "open" soon, and thus accelerate their development through the work of the community. Read more here...