Linux Unix Training Classes in Madison, Wisconsin

Hartmann Software Group Linux Training

Learn Linux Unix in Madison, Wisconsin and surrounding areas via our hands-on, expert led courses. All of our classes are offered on an onsite, online and public instructor led basis. Here is a list of our current Linux Unix related training offerings in Madison, Wisconsin: Linux Unix Training

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Madison  Upcoming Instructor Led Online and Public Linux Unix Training Classes
Developing Applications For Linux (LFD401) 22 July, 2019 - 25 July, 2019 $2600 Hartmann Software Group Training Registration
Developing Embedded Linux Device Drivers (LFD435) 26 August, 2019 - 29 August, 2019 $2600 Hartmann Software Group Training Registration
Developing Linux Device Drivers (LFD430) 17 June, 2019 - 20 June, 2019 $2600 Hartmann Software Group Training Registration
Linux Kernel Internals and Development (LFD420) 8 July, 2019 - 11 July, 2019 $2600 Hartmann Software Group Training Registration
Linux Performance Tuning (LFS426) 17 June, 2019 - 20 June, 2019 $2600 Hartmann Software Group Training Registration
Linux Security (LFS416) 15 July, 2019 - 18 July, 2019 $2600 Hartmann Software Group Training Registration
Linux System Administration (LFS301) 3 June, 2019 - 6 June, 2019 $2600 Hartmann Software Group Training Registration
Open Source Virtualization (LFS462) 20 May, 2019 - 23 May, 2019 $2400 Hartmann Software Group Training Registration

View all Scheduled Linux Unix Training Classes

Linux Unix Training Catalog

cost: $ 1090length: 3 day(s)

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This section of our beginning python training class always stumps students.  Firstly, because they need to know the difference between a function and a method.  Secondly, they need to understand object oriented programming concepts.  Thirdly, they need to realize that python has three types of methods.  Then they need to know how to use each method, which means they need to know the purpose of each method type.  Then they have to understand mutable versus non-mutable types.  The list goes on.  As part of our python tutorial, I hope to shed some light on this confusing topic.

To begin, the difference between a function and a method in python is that a method is defined within a class.  Here is an illustration:

#function

	def greeting():
	                print "Hello, I hope you're having a great day!"

	class HSGPrinter(object):
	                #method
	                def greeting(self): 
	                                print "Hello, I hope you're having a great day!"

As should be obvious, the second definition of greeting is encapsulated within the HSGPrinter class and is , therefore, refered to as a method.

The astute reader will notice that the greeting method contains one parameter named self.  For those who know C++ , Java or C#, self is equivalent to this i.e. it is a reference to the invoking object:

In programming, memory leaks are a common issue, and it occurs when a computer uses memory but does not give it back to the operating system. Experienced programmers have the ability to diagnose a leak based on the symptoms. Some believe every undesired increase in memory usage is a memory leak, but this is not an accurate representation of a leak. Certain leaks only run for a short time and are virtually undetectable.

Memory Leak Consequences

Applications that suffer severe memory leaks will eventually exceed the memory resulting in a severe slowdown or a termination of the application.

How to Protect Code from Memory Leaks?

Preventing memory leaks in the first place is more convenient than trying to locate the leak later. To do this, you can use defensive programming techniques such as smart pointers for C++.  A smart pointer is safer than a raw pointer because it provides augmented behavior that raw pointers do not have. This includes garbage collection and checking for nulls.

If you are going to use a raw pointer, avoid operations that are dangerous for specific contexts. This means pointer arithmetic and pointer copying. Smart pointers use a reference count for the object being referred to. Once the reference count reaches zero, the excess goes into garbage collection. The most commonly used smart pointer is shared_ptr from the TR1 extensions of the C++ standard library.

Static Analysis

The second approach to memory leaks is referred to as static analysis and attempts to detect errors in your source-code. CodeSonar is one of the effective tools for detection. It provides checkers for the Power of Ten coding rules, and it is especially competent at procedural analysis. However, some might find it lagging for bigger code bases.

How to Handle a Memory Leak

For some memory leaks, the only solution is to read through the code to find and correct the error. Another one of the common approaches to C++ is to use RAII, which an acronym for Resource Acquisition Is Initialization. This approach means associating scoped objects using the acquired resources, which automatically releases the resources when the objects are no longer within scope. RAII has the advantage of knowing when objects exist and when they do not. This gives it a distinct advantage over garbage collection. Regardless, RAII is not always recommended because some situations require ordinary pointers to manage raw memory and increase performance. Use it with caution.

The Most Serious Leaks

Urgency of a leak depends on the situation, and where the leak has occurred in the operating system. Additionally, it becomes more urgent if the leak occurs where the memory is limited such as in embedded systems and portable devices.

To protect code from memory leaks, people have to stay vigilant and avoid codes that could result in a leak. Memory leaks continue until someone turns the system off, which makes the memory available again, but the slow process of a leak can eventually prejudice a machine that normally runs correctly.

 

Related:

The Five Principles of Performance

In Demand IT Skills

Sometimes we have to repeat ourselves before we are heard. Then again there are times where we have to perform a certain action the same way several times before we can carry on with what we want to do.

Repetition is the keyword here and for humans that is something we generally try to avoid. Yet our digital friends love repetition. They never get tired and they never get bored of doing the same thing over and over again countless times.

So it’s little wonder then that all modern programming languages give us various ways in which we can perform a certain action as many times as we need.

In python we have the for statement which gives us the power to loop over large collections of data very quickly and efficiently.

Planning on a little spring cleaning and getting rid of all those old electronics? With the way technology changes so quickly, it seems like we no sooner have one new electronic piece and there’s a new one on the market that we absolutely have to have. The result is a ton of used electronics stored away. Now it’s time to get rid of everything, here are some tips on what to do with all that old tech stuff and how to do it safely.

Save on Landfill Waste

Few people really realize where their electronics wind up when they throw them in the trash or dumpster. They assume they’re getting taken care of and just forget about them. According to the Environmental Protection Agency, one of the fastest growing components of landfill waste is electronics. The unfortunate part of this is that these electronics are filled with lead, mercury and other toxic chemicals – chemicals that find their way into our soil and water.

This results in the contamination of our lakes, streams and soil. The best way to avoid this is by knowing where your electronics are going and to dispose of them safely. Contact the recycling center in your area and ask for the best place to dispose of your old electronics.

Think of Security

Our lives are filled with electronic technology, whether it’s in the form of computers, tablets, smart phones or video games. Most of these electronics allow network sharing with people all over the world. With identity theft such a growing concern, much of our private lives and personal information is entered in the hard drives of these items.

Before you dispose of any electronics, make sure the hard drives are wiped clean of all personal information. This requires more than just “deleting” files. If you’re not sure how to correctly get rid of the information, contact a professional to do this for you. Even if you have to pay to have it done, it’s a minimal expense compared to having your private information stolen.

Find New Homes for Your Electronics

Once you’ve cleaned out your electronics of personal information, they may still be worth something to other individuals. You may know of a child or elderly person who would really appreciate a “new” computer or a tablet. Someone who has never owned a smart phone or laptop may be thrilled to suddenly own one, even if they are obsolete to you.

If you can’t find anyone that wants them, consider selling them on places like eBay, Craigslist or one of the many other online auction sites. The old saying, “one man’s junk is another man’s gold” is especially true when it comes to electronics. Many people like building computers using their own parts.

Students in computer-related programs also utilize used electronics as a form of hands-on training. Most schools also take in donated computers, televisions and cell phones. Contact your electric company or school district to get information on where you can take your old electronics. You’ll be not only cleaning out your house but also helping the environment.

 

Related:

Cloud Computing: What It Means and How It Could Threaten the Traditional Outsourcing Model

Tech Life in Wisconsin

Fun Facts and stats: ? Wisconsin?s nickname is the Badger State. ? In 1882 the first hydroelectric plant in the United States was built at Fox River. ? The first practical typewriter was designed in Milwaukee in 1867. ? The nation's first kindergarten was established in Watertown in 1856. Its first students were local German-speaking youngsters. ? The Republican Party was founded in Ripon in 1854.
It is nothing for one to know something unless another knows you know it. ~Persian Proverb
other Learning Options
Software developers near Madison have ample opportunities to meet like minded techie individuals, collaborate and expend their career choices by participating in Meet-Up Groups. The following is a list of Technology Groups in the area.
Fortune 500 and 1000 companies in Wisconsin that offer opportunities for Linux Unix developers
Company Name City Industry Secondary Industry
We Energies Milwaukee Energy and Utilities Gas and Electric Utilities
Bemis Company, Inc. Neenah Manufacturing Plastics and Rubber Manufacturing
Regal Beloit Corporation Beloit Manufacturing Tools, Hardware and Light Machinery
Manitowoc Company, Inc Manitowoc Manufacturing Heavy Machinery
Briggs and Stratton Corporation Milwaukee Manufacturing Tools, Hardware and Light Machinery
Mortgage Guaranty Insurance Corporation (MGIC) Milwaukee Financial Services Lending and Mortgage
A.O. Smith Corporation Milwaukee Manufacturing Tools, Hardware and Light Machinery
Sentry Insurance Stevens Point Financial Services Insurance and Risk Management
Rockwell Automation, Inc. Milwaukee Manufacturing Tools, Hardware and Light Machinery
Bucyrus International, Inc. South Milwaukee Manufacturing Heavy Machinery
Diversey, Inc. Sturtevant Manufacturing Chemicals and Petrochemicals
Alliant Energy Corporation Madison Energy and Utilities Gas and Electric Utilities
Plexus Corp. Neenah Manufacturing Manufacturing Other
Spectrum Brands Holdings, Inc. Madison Manufacturing Tools, Hardware and Light Machinery
Kohl's Corporation Menomonee Falls Retail Department Stores
Snap-on Tools, Inc. Kenosha Manufacturing Tools, Hardware and Light Machinery
Fiserv, Inc. Brookfield Software and Internet Data Analytics, Management and Storage
CUNA Mutual Group Madison Financial Services Insurance and Risk Management
Oshkosh Corporation Oshkosh Manufacturing Heavy Machinery
Modine Manufacturing Company Racine Manufacturing Manufacturing Other
Northwestern Mutual Life Insurance Company Milwaukee Financial Services Insurance and Risk Management
Joy Global Inc. Milwaukee Manufacturing Heavy Machinery
Harley-Davidson, Inc. Milwaukee Manufacturing Automobiles, Boats and Motor Vehicles
American Family Insurance Madison Financial Services Insurance and Risk Management
Johnson Controls, Inc. Milwaukee Manufacturing Heavy Machinery
ManpowerGroup Milwaukee Business Services HR and Recruiting Services

training details locations, tags and why hsg

A successful career as a software developer or other IT professional requires a solid understanding of software development processes, design patterns, enterprise application architectures, web services, security, networking and much more. The progression from novice to expert can be a daunting endeavor; this is especially true when traversing the learning curve without expert guidance. A common experience is that too much time and money is wasted on a career plan or application due to misinformation.

The Hartmann Software Group understands these issues and addresses them and others during any training engagement. Although no IT educational institution can guarantee career or application development success, HSG can get you closer to your goals at a far faster rate than self paced learning and, arguably, than the competition. Here are the reasons why we are so successful at teaching:

  • Learn from the experts.
    1. We have provided software development and other IT related training to many major corporations in Wisconsin since 2002.
    2. Our educators have years of consulting and training experience; moreover, we require each trainer to have cross-discipline expertise i.e. be Java and .NET experts so that you get a broad understanding of how industry wide experts work and think.
  • Discover tips and tricks about Linux Unix programming
  • Get your questions answered by easy to follow, organized Linux Unix experts
  • Get up to speed with vital Linux Unix programming tools
  • Save on travel expenses by learning right from your desk or home office. Enroll in an online instructor led class. Nearly all of our classes are offered in this way.
  • Prepare to hit the ground running for a new job or a new position
  • See the big picture and have the instructor fill in the gaps
  • We teach with sophisticated learning tools and provide excellent supporting course material
  • Books and course material are provided in advance
  • Get a book of your choice from the HSG Store as a gift from us when you register for a class
  • Gain a lot of practical skills in a short amount of time
  • We teach what we know…software
  • We care…
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Interesting Reads Take a class with us and receive a book of your choosing for 50% off MSRP.