Saturday, February 19, 2011

Linux / UNIX: Bash Script Sleep or Delay a Specified Amount of Time

How do I pause for 5 seconds or 2 minutes in my bash shell script?

You need to use the sleep command to add delay for a specified amount of time. The syntax is as follows:

 
sleep NUMBER[SUFFIX]
 
Where SUFFIX may be:
  1. s for seconds (the default)
  2. m for minutes.
  3. h for hours.
  4. d for days.
To sleep for 5 seconds, use:

sleep 5

To sleep for 2 mintus, use:

sleep 2m

sleep Command Bash Script Example

  #!/bin/bash  
echo "Hi, I'm sleeping for 5 seconds..."  
sleep 5
echo "all Done."
 

CONNX Adds 64 Bit ODBC and JDBC Support for UNIX Platforms

CONNX Solutions, Inc. announces the release of CONNX version 11, service pack 2. This release includes performance enhancements, improved functionality with Oracle databases and the addition of 64 bit UNIX ODBC and JDBC support to their enterprise data integration and ETL product suite.

CONNX Solutions, Inc., a leading provider of simplified data access, management and integration software solutions, announces the release of CONNX 11 SP2, which is available today for demonstration, evaluation and purchase. This product introduces 64 bit ODBC and JDBC support for Linux, AIX, Solaris, and HPUX on both the RISC and Itanium platforms. This extended 64 bit support enables data access from custom or packaged 64bit applications on UNIX platforms. Additionally, SP2 takes advantage of the most recent Oracle OCI technology, resulting in faster performance overall when accessing Oracle data and enables the development of custom Oracle data types.

"SP2 is a result of incorporating our customer feedback from release 11 and the increasing demand for 64 bit support needed in the market place today", says Larry McGhaw, CTO & VP of Development at CONNX Solutions, Inc.

"We believe this new technology will bring unmatched performance to our customers engaged in enterprise wide integration and replication projects. Our existing clients using Oracle will benefit immediately by an up to 2x speed improvement. Benchmarks to date show the superiority of CONNX in the market and why the CONNX Distributed SQL Engine is so unique", said Shirley McKinney, Director of Business Development at CONNX Solutions, Inc.

Enhanced Integration features presented in CONNX 11 SP2

  •   32bit/64bit Data bridge
  •   Distributed SQL Engine
  •   MetaData Management.
  •   ETL and Change Data Capture
  •   Comprehensive Database Driver Suite
"We are continuing to improve and enhance the functionality of our product offerings at CONNX Solutions. This allows our customers to keep their initial development and future maintenance costs lower while still being able to take advantage of the ever changing technology that is required to remain competitive," stated Douglas D. Wright, President and CEO of CONNX Solutions, Inc.

CONNX 11 SP2 is currently available for purchase. Contact CONNX Solutions at 888-882-6669 for pricing information.

About CONNX Solutions, Inc.

CONNX Solutions, Inc. is a leading provider of SQL data access, integration and replication software solutions. CONNX DataSync Transformation Server, an ETL solution that leverages the core CONNX data access technology, enables companies to seamlessly extract, transform and load relational and non-relational data throughout the enterprise.

CONNX Solutions' products have been implemented by over 3,000 organizations worldwide. Government and business entities use CONNX in a wide range of industries, including manufacturing, education, health care, financial services, telecommunications, aerospace, and information technology. CONNX Solutions' technology partners include HP, IBM, Oracle, Microsoft and SoftwareAG.

For specific features of CONNX 11 SP2, visit http://www.connx.com/products/connx11sp2.html

Saturday, February 5, 2011

What are the disadvantages of UNIX?

There will advantages and disadvantages for anything in this world; either it is a safety pin or cryogenic engine. What makes a costly rocket to crash which was made by hundreds of scientists taking many months or years? Any minor loophole in the development of the system might have resulted in the crash.

Likewise, there are thousands of software programs which have mushroomed over the years for several purposes and a large number of them are trouble prone. Consideration for purchasing or installing a program should be totally based on the performance rather than other considerations such as cheaper one available in the market.

As you know, UNIX as an operating system is arguably very good while comparing with other products in the market for its stability and perfect functions and capacity to run multiple programs, freeware status, the first operating system in C program, its portability, etc. There are lot of disadvantages also for UNIX.
While discussing the disadvantages experienced in the use of UNIX systems, one of the main complaint against it is that its traditional interface is command line based, means a layman cannot use it. On the other words, it is a program developed for the user of experienced programmers and expert computer users only.

Even though a Graphical User Interface (GUI) is available, the traditional interface is command line only.
Second disadvantage is its special commands, means many commands in the Unix interface require the use of special characters. Even minor mistakes or typographical errors will create troubles on Unix machines because its command line interface make use of cryptic naming schemes and not offering much suggestions to the user.

Another disadvantage is that it is not a simple operating system even though it looks attractiveness to the beginners in terms of its features and utilities. Some people find them very attractive and for some it will be a very tough proposition.

By any means, UNIX is considered above all other operating systems by many people and preferred by web hosting companies for its better side.

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Dedicated servers host only your website. It means that all of the space and bandwidth on the server is yours and yours alone and you do not have to share hosting with other. In opposite The shared host server is a cheap way of hosting and it’s mostly for low traffic websites.

There are many reasons why we Dedicated Server hosting like:

Your own IP address: Dedicated server has its own unique IP address.

Custom Configuration: You can configure the server to your own solution and install your special software.

Performance: All your activities like memory, web spaces etc are on same server.

Security: You have your own access on your server which gives you the greater security.

Greater Reliability: You do not run the risk of the server being swamped with traffic, slowed down, or crashed by another site on a shared server.

Upgrade: You can upgrade your web space or memory on your server.

To get the best dedicated server hosting you need to store more or less. Make sure that you find a service provider that will give you excellence service. Dedicated Server hosting providers ranked by the best price-value ratio. Host consistency, bonus features, customer support, past and present user feedbacks, key features, uptime, user-friendliness and hosting awards have been taken into account as well.

Most significantly, you must carefully think whether or not your desires warrant the use of a whole host server. When accurately optimized, a powerful computer can offer the ability to comfortably contain the requirements of hundreds to thousands of websites.

Dedicatedserversmart.com provides the information about the dedicated server hosting companies and the information that guide you for Dedicated Server hosting or Server hosting company that is right for you. Trying to save on the hosting features and the value of the Server hosting services may cause serious troubles in future that may consequence in major losses for your business.

Is SCO's Unix business being sold to UnXis?





In an email, SCO  informed its partners that UnXis Inc. was chosen as the successful bidder for SCO's Unix software business on 26 January. The slightly convoluted phrasing is probably due to SCO's current reorganisation.  On 16 February, the transaction is to be submitted for approval to the bankruptcy court where SCO's case is pending.

The email also quotes Hans Bayer, SCO's Vice President Worldwide Sales, as saying that “We are delighted that after years of shifting targets, that under the UnXis ownership, we now will be prepared to create a truly customer driven, fully supported, open systems platform for high reliability enterprise computing”.



Apart from the aforementioned email, information about the deal is very scarce. The SCO home page contains a solitary link to the press releasePDF. The Groklaw web site has information about SCO and a company called UnXis Inc. from 2009. According to Groklaw, UnXis was incorporated in the US state of Delaware at the end of 2009. Whether this company is the UnXis Group in question is hard to tell. Also peculiar is that the obvious domain name, unxis.com, is for sale and that such potential alternatives as unxis-group.com or unxisgroup.com have not been registered at all – plenty of food for thought for conspiracy theorists.

SCO's Unix business includes the distribution and development of UnixWare and OpenServer as well as the support of these products. Last September, SCO announced its plans to auction off this business division. If the sale goes through, all the SCO Group will have left are its lawsuits against IBM and Red Hat about alleged copyright infringements in Linux and the hope that the most recent appeal against a final decision on the copyright to Unix, which SCO is fighting about with Novell, is successful.

Thursday, February 3, 2011

Berkeley Heights man wins Japan Prize for inventing UNIX operating system

Dr.Dennis Ritchie
BERKELEY HEIGHTS — Forty years after they invented the UNIX computer operating system at Bell Labs in Murray Hill, Berkeley Heights resident Dr. Dennis Ritchie and Dr. Kenneth Thompson will receive the Japan Prize.
“I was surprised. I was not expecting this,” Ritchie said in a telephone interview. “It was so far back.”
He explained the two aspects he and Thompson worked on were based on an earlier language. “It did not come out of the blue,” he said. They modified a language that was initially developed at MIT, he said, which later became the C language.
The $600,000 award will be presented on April 20 in Tokyo to both scientists, who will divide it. Ritchie said Thompson flew to Japan for the announcement, but Ritchie sent his response by video from Bell Labs.
He plans to use his part of the proceeds to fly his siblings and spouses to Japan for the event. None of his siblings pursued engineering or science, he said. One brother is a retired superintendent of schools in the Boston area, another brother and his wife run a toy company in the Washington, DC area and he has a sister who has lived in England for many years.
Ritchie, 69, has lived in Berkeley Heights for 15 years. He was born in Bronxville, NY, grew up in Summit and attended Summit High School before going to Harvard University. While there, he attended a lecture on the concept of computers and became intrigued. He shifted his focus from physics to computer programming. He recalled seeing his first computer, which he described as “a big square cubicle box.” He was a graduate student in Applied Mathematics, with a 1968 doctoral thesis on subrecrusive hierarchies of functions. “I like procedural languages better than functional ones,” he has said.
Ritchie joined Bell Labs in 1967, where his father, Alistair E. Ritchie, spent his career. The elder Ritchie was co--author of “The Design of Switching Circuits,” with W. Keister and S. Washburn, an influential book that came out just before the transistor era. Asked if he could have envisioned the rapid technological changes today, Dennis Ritchie said, “I’m not a futurologist.” Ritchie retired from Bell Labs in 2007, but continues as an emeritus staff member.
He met Thompson while working at Bell Labs, now Alcatel-Lucent, in Murray Hill. Thompson, 67, who grew up in New Orleans, had already experimented with a language for personal computers, emphasizing simplicity. Together they developed the UNIX system which became so popular in part because it was distributed to universities and research institutions and became known as “open source” computing. Thompson now works with Google in California.
Both men received the U.S. National Medal of Technology Award from President Bill Clinton as well as numerous commendations for their work.
“Dennis and Ken changed the way people used, thought and learned about computers and computer science,” Jeong Kim, president of Alcatel-Lucent Bell Labs, said in a press release. He added the UNIX system and the C programming language have revolutionized computing and communications, making open systems possible.
The Japan Prize was established in 1985 to honor achievements in science and technology.