Perl and Bash Versions Of Binary To Decimal Conversion Script: related news

Perl and Bash Versions Of Binary To Decimal Conversion Script

The Linux and Unix Menagerie: "As promised, in yesterday's post on converting binary values to decimal in C, today we're going to follow up with straight-up ports to Perl and shell.

Perl and Bash Versions Of Binary To Decimal Conversion Script

"Both of today's scripts work exactly as they did in yesterday's post (with the bonus that these programs will know whether your variables are integers or characters just by defining them (No initialization necessary). Please check out that conversion program post for specifics on how the program works, it's purposefully imposed limitations, etc."

Converting Binary Numbers To Decimal The Hard Way On Linux Or Unix

The Linux and Unix Menagerie: "If you recall a while back, we looked at using Perl's "unpack" function to easily convert binary values to decimal and convert decimal back to binary.

Perl and the Practical Systems Administrator

Systems administrators are very busy people. Sometimes a bit of common sense programming can go a long way toward eliminating some of the repetitive tasks associated with systems administration. Perl can be used to automate many recurring tasks. AccountCheck is an example Perl script that automatically checks for problems that can occur when user accounts are made and deleted without every necessary step being completed. Partially created or deleted accounts can be a security hazard, acting as hidden doors to let intruders enter a system. Most systems have such hidden doors. This Perl script checks for all the common types of errors that can occur. It checks the following:

Converting Binary Numbers To Decimal The Hard Way On Linux Or Unix

"The method of execution is not the most efficient, but I think it's the most "human readable." In a future post, we'll definitely convert it to Perl, shell and Awk. And, maybe before then, we'll get to the next part in our ongoing series on Perl, shell and Awk porting. We'll get there eventually. If I didn't have so many different things to write about, I could bore you to tears with that stuff (if I haven't already ;)"

Bash Cookbook

Chad_Wollenberg writes "Anyone who has used a derivative of Unix over the past 20 years has used Bash, which stands for Borne Again Shell. The geek in all of us makes us want to extend our ability to rule the command line. To truly master a Unix environment, you need to know a shell, and Bash is easily the most popular of them. Any Unix/Linux/BSD administrator knows the power at your fingertips is fully extended by what you can do within the Bash environment, and all of us need the best recipes to get the job done." Keep reading for the rest of Chad's review.

Creating JavaFX Script Objects and Using Them in Java Programs

Michael Heinrichs has written a Sun Developer Network article on Using JavaFX Script Objects in Java Programs. This process is a fairly easy one, he maintains, because JavaFX Script was designed to enable the use of Java objects and because the necessary instruments are built right into the language. He demonstrates possible ways to create JavaFX objects and to use them in Java code. According to Heinrichs, the first issue to address in designing a system that includes components written in JavaFX Script is the decision about which technology to use for the startup. There is, he writes, no correct answer; that depends on the context. He recommends using a factory as a means of creating JavaFX objects from Java code without relying on calling the constructor, which is a practice that is typically discouraged.

Part 3: JavaFX Script Functions

In August and September 2007, John O'Conner of the Sun Developer Network wrote a series titled "Learning Curve Journal" designed to help users get started with the JavaFX Script programming language (shortened to JavaFX Script in the remainder of this article). A number of significant advances have been made to the language since then. Perhaps most important is the availability of a compiler-based version of JavaFX Script, which replaces the earlier interpreter-based version of the language. The Learning Curve Journal described the use of the interpreter-based version of the language. The Learning Curve Journal has been updated to show you how to use the compiler-based version of the language. Other changes have been made to make the articles current.

Creator Promises Perl 6 Will Be First Truly Extensible Programming Language

Perl creator Larry Wall promised version 6 of Perl will be the first truly extensible programming language during his annual "State of the Onion" speech at the O'Reilly Open Source Conference (OSCON), being held this week in Portland, Ore.

Perl vision gets sharper

PORTLAND, Ore.—Version 6 of the Perl will be the first truly extensible programming language, promised Perl creator Larry Wall during his annual "State of the Onion" speech at the O'Reilly Open Source Conference (OSCON), being held this week.

Binary Asteroid Glides Past Earth

A rare event has given astronomers a great view of a binary asteroid system. Tonight, asteroid 2008 BT18 passed 1.4 million miles from Earth, shining like a 13th magnitude star. Before July 7th, astronomers believed 2008 BT18 was "just another" near-Earth asteroid, but then the Arecibo radio telescope obtained a "delay-Doppler" image of the asteroid and found it in fact had a binary partner. Although binaries are fairly common in the Solar System, this was a rare opportunity for a ground-based telescope to capture such a clear view…

Programming Perl, 3rd Edition

Very Nice. A definite must have if you program in Perl. This book complements learning Perl so nicely.

Data Conversion and Validation

This article shows techniques to convert data or issues when working with data conversion and validation. Brian examines the techniques involved in Data and Nullable Type Conversion with the help of code snippets in C#. He also provides an outline of String, Data Type ranges, and the different ways with which you can manipulate data input in ASP.NET. More...

Microsoft Releases Pre-2007 Binary File Format Specs

An anonymous reader writes "Microsoft has released the specifications for the binary file formats used by pre-2007 Microsoft Office applications. They're accurate this time! Honest! While the documents are enormous (Word alone requires 533 pages; Excel runs over 1000 plus another 850 pages for the Office 2007 binary format), they hopefully will be useful to developers trying to create or extract information from Microsoft Office files (which despite their flaws, have been the de facto standard in many fields for some time now)."

Performance Woe of Binary XML

Since its inception, XML has been criticized for the overhead it introduces into the enterprise infrastructure. Business data encoded in XML takes five to 10 times more bandwidth to transmit in the network and proportionally more disk space to store. While most agree that verbosity is inherent to XML's way of encoding information (e.g., extensive use of tags and pointy brackets), the explanation of XML's perceived performance issue remains inconclusive. A popular belief is that since XML is human-readable text, it has to be slow and inefficient. And by the same token, proponents of binary XML seem to suggest that a compact encoding format, most noticeably the binary XML, would automatically lead to better processing performance.

Nik Launches Silver Efex Pro B&W Conversion Software

Editor's Note: We recently saw a demo of the new Silver Efex Pro plug-in from Nik Software and left thinking -- why aren't there more professional B&W conversion plug-ins out there like this one? While there are some pretty decent B&W tools in Photoshop itself, we really liked what we saw from Silver Efex Pro, especially that it didn't sacrifice ease-of-use for control. Indeed, Nik's very helpful "U Point" technology is once again used in Silver Efex Pro, giving you many ways to selectively tweak tone and contrast in your images during B&W conversion.

i-Technology Viewpoint: The Performance Woe of Binary XML

Since its inception, XML has been criticized for the overhead it introduces into the enterprise infrastructure. Business data encoded in XML takes five to 10 times more bandwidth to transmit in the network and proportionally more disk space to store. While most agree that verbosity is inherent to XML's way of encoding information (e.g., extensive use of tags and pointy brackets), the explanation of XML's perceived performance issue remains inconclusive. A popular belief is that since XML is human-readable text, it has to be slow and inefficient. And by the same token, proponents of binary XML seem to suggest that a compact encoding format, most noticeably the binary XML, would automatically lead to better processing performance.

i-Technology Viewpoint: The Performance Woe of Binary XML

Since its inception, XML has been criticized for the overhead it introduces into the enterprise infrastructure. Business data encoded in XML takes five to 10 times more bandwidth to transmit in the network and proportionally more disk space to store. While most agree that verbosity is inherent to XML's way of encoding information (e.g., extensive use of tags and pointy brackets), the explanation of XML's perceived performance issue remains inconclusive. A popular belief is that since XML is human-readable text, it has to be slow and inefficient. And by the same token, proponents of binary XML seem to suggest that a compact encoding format, most noticeably the binary XML, would automatically lead to better processing performance.

Simple Perl Script To Ease Console Server Use On Linux And Unix

Broadband Service Provider Trident SR Sdn. Bhd.

The Sunny Side of Asteroids

Asteroids with moons, called binary asteroids, are fairly common in the solar system. But scientists haven't been able to figure out the dynamics of these asteroids, especially how the moons form. But a group of astronomers studying binary asteroids say the surprising answer is sunlight, which can increase or decrease the spin rate of an asteroid. The researchers also say that since there are a number of "double craters" on Earth – side-by side craters that appear to have formed at about the same time — these binary asteroids may have hit our planet in the past. The image above is of twin circular lakes in Quebec, Canada, formed by the impact of an asteroidal pair which slammed into the planet approximately 290 million years ago. Similar double craters also can be found on other planets, as well.

Which Open Source Video Apps Use SMP Effectively?

ydrol writes "After building my new Core 2 Quad Q6600 PC, I was ready to unleash video conversion activity the likes of which I had not seen before. However, I was disappointed to discover that a lot of the conversion tools either don't use SMP at all, or don't balance the workload evenly across processors, or require ugly hacks to use SMP (e.g. invoking distributed encoding options). I get the impression that open source projects are a bit slow on the uptake here? Which open source video conversion apps take full native advantage of SMP? (And before you ask, no, I don't want to pick up the code and add SMP support myself, thanks.)"

Part 2: Declarative User Interfaces

In August and September 2007, John O'Conner of the Sun Developer Network wrote a series titled "Learning Curve Journal" designed to help users get started with the JavaFX Script programming language (shortened to JavaFX Script in the remainder of this article). A number of significant advances have been made to the language since then. Perhaps most important is the availability of a compiler-based version of JavaFX Script, which replaces the earlier interpreter-based version of the langauge. The Learning Curve Journal described the use of the interpreter-based version of the language. The Learning Curve Journal has been updated to show you how to use the compiler-based version of the language. Other changes have been made to make the articles current.

Learning Curve Journal

In August and September 2007, John O'Conner of the Sun Developer Network wrote a series titled "Learning Curve Journal" designed to help users get started with the JavaFX Script programming language (shortened to JavaFX Script in the remainder of this article). A number of significant advances have been made to the language since then. Perhaps most important is the availability of a compiler-based version of JavaFX Script, which replaces the earlier interpreter-based version of the language. The Learning Curve Journal described the use of the interpreter-based version of the language. The Learning Curve Journal has been updated to show you how to use the compiler-based version of the language. Other changes have been made to make the articles current.

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