- Homework Solutions
- Homework Questions & Answers
Describe how a user can combine applications with each other and
with utilities to perform useful tasks in UNIX. Specifically, what
mechanisms and concepts in the UNIX operating system enable this?
pipes is an unix mechanism to send the output of one program as input to the other program and can start
executing one after the other.
We use '|' symbol for Pipes.
Suppose we want search for files which contain "check" in them and put that into a file called results.txt
By using pipes we can do it in the following way :
ls | grep "check" | cat > results.txt
Describe how a user can combine applications with each other and with utilities to perform useful tasks in UNIX. Specifi...
6. (6 points) Briefly answer the following pts) The two concepts of Mechanism and Policy are central to the implementation of protection. Briefly describe each of these concepts. Identify the role, if any, of the operating a. (4 system and user in each concept. b. (8 pts) Briefly define a Stack Buffer Overflow. Then describe how a stack overflow might occur in a program, and how vulnerability can be used to compromise an operating system Describe two different mechanisms for...
Chapter 5 Lab – DOS/UNIX/WINDOWSThe purpose of this lab is to set up a series of tasks that are typically done using an operating system. Ideally you have all three systems available and can do eachtask in all three. This should show not only how to do tasks using three powerful operating systems, but how some tasks are easier in some than in others and some arenear impossible. You may be surprised by the results. If you have grown up...
Describe how tuples can be useful with loops over lists and dictionaries, and give Python code examples. Create your own code examples. Do not copy them from the textbook or any other source. Your descriptions and examples should include the following: the zip function, the enumerate function, and the items method. Please do NOT copy other chegg answers. I saw three identical questions of this with the same exact answer.
Can you describe some situations in which you would have liked to exchange information between Excel and some other applications? What are these applications, and why was such an exchange desirable? How might such exchanges make your work faster, more efficient, or more accurate?
Describe how the concepts of leadership and management differ from each other. In what areas do they overlap? Explain how the goals of management and leadership may sometimes overlap. As a nurse leader, do you believe you can expand your influence to create change by taking advantage of this overlap? Explain your answer.
Improvised explosive devices (IEDs) are responsible for many deaths in times of strife and war. Unmanned ground vehicles (robots) can be used to disarm the IEDs and perform other tasks as well. If the robots cost $135,000 each and the military arms unit signs a contract to purchase 4,500 of them now and another 9,000 one year from now, what is the equivalent annual cost of the contract over a 5-year period at 9% per year interest? The equivalent cost...
Please answer 1 to 4 1. What factors are involved in genetic vaariation? Can the concepts be both detrimental and beneficial? Give examples. 2. For a given population, what 3 mechanisms other than natural selection can result in changes in gene frequencies (microevolution)? How do each of these operate? 3. Compare and contrast artificial and natural selection, How do these concepts affect fitness in certain population? How does this affect evolution of a species?o ono s 4. Consider the effect...
What are the three basic functions of money? Describe how rapid inflation can undermine money’s ability to perform each of the three functions. Answer each part of the question, and give details. What "backs" the money supply in the United States? What determines the value (domestic purchasing power) of money? How does the purchasing power of money relate to the price level? Who is the U.S. is responsible for maintaining money 's purchasing power?
1. Describe the concept of body composition. Describe, in some detail, how exercise can reduce obesity and improve body composition. Provide two specific examples of how exercise can be made more safe/fun/enjoyable for children. 2. Describe 2 benefits of strength training for the older population. Why should at-risk older adults be closely supervised in strength-training programs? Describe the factors that might contribute to a loss of strength and flexibility as adults age. 3. Explain the developmental changes that occur in...
Have to use C or C++ for the following. I need help with the Linux/Unix system commands necessary to do this. I can write any necessary C code, but do not know whatsystem functions I need to implement this problem.Assignment: Implement your own command line interpreter like a Unix shell program - an application program that gets commands from a keyboard and uses the system callinterfaces to invoke OS functions.Shell should support the following:a) Support exit or stop your shell...