Ask Computer Engineering Expert

Please provide screenshots for each part. Some syntax may need to be corrected if necessary. Comment is needed for each part.

Log in to your VM machine and provide a screenshot of your work and make sure to use MS word to comment in each screenshot. It's not enough to past the execution of the command to get a full credit. 

In this homework lab, you will manage processes. You will view running processes several ways and examine their priorities. You will run a sample program, observe it, and then set it to run in the background. While it is running, you will monitor it, then send a kill signal to its job ID. You will schedule processes to run once at a specified time, then subsequently set it up to run at specified intervals.

Log in to the VM machine and start working.

Part 1: View the current processes using the ps command. The -aux option will show ALL of the processes running on the system. View all processes using the ps -aux | more command piped into the more command. View all of the processes using the pstree command. View the current processes using the top command. The top command shows current processes in real time and stays active until ended with the CTRL+C keystroke. Use CTRL+C to end the command. Clear the screen.

Part2: Run the yes command in the foreground by typing yes and then stop it using the CTRL + C keystroke. Run it and send output to /dev/null using yes > /dev/null. The shell prompt will not return until the process is stopped, again using CTRL+C. RUN the process in the background by adding the ampersand metachracter (&) to the last command. A space before the ampersand is optional. Now you get the job and PID output [1] 2218 and prompt returns.

Part 3: Check the job by typing the jobs command. Another way to check it is use the ps command; type that next. Send a kill signal to the yes process using its job number. Type kill %1. Use the jobs command to verify the termination of the process. View the list of available kill signals by typing kill -l. Clear the screen when you are finished.

Part 4: Use the ps -l command to view the nice values of the currently running processes. Record the nice value and the priority of the ps command. Clear the screen.

Part 5: Make a simple batch file named atbatch and schedule it to run the atfile using the at command. To create the file use the cat command as follows: cat > atbatch. On the next line, echo "This file was created by the at command" > atfile. Use CTRL+C to close the atbatch file. Use the date command to get time. Use the t command to run the command in one minute from the time shown. The command will be at 5:25 AM -f atbatch. The job will be confirmed. After a minute, type cat atfile and you should see that atfile was created with the line, "This file was created by the at command".

Computer Engineering, Engineering

  • Category:- Computer Engineering
  • Reference No.:- M92396623
  • Price:- $25

Priced at Now at $25, Verified Solution

Have any Question?


Related Questions in Computer Engineering

Does bmw have a guided missile corporate culture and

Does BMW have a guided missile corporate culture, and incubator corporate culture, a family corporate culture, or an Eiffel tower corporate culture?

Rebecca borrows 10000 at 18 compounded annually she pays

Rebecca borrows $10,000 at 18% compounded annually. She pays off the loan over a 5-year period with annual payments, starting at year 1. Each successive payment is $700 greater than the previous payment. (a) How much was ...

Jeff decides to start saving some money from this upcoming

Jeff decides to start saving some money from this upcoming month onwards. He decides to save only $500 at first, but each month he will increase the amount invested by $100. He will do it for 60 months (including the fir ...

Suppose you make 30 annual investments in a fund that pays

Suppose you make 30 annual investments in a fund that pays 6% compounded annually. If your first deposit is $7,500 and each successive deposit is 6% greater than the preceding deposit, how much will be in the fund immedi ...

Question -under what circumstances is it ethical if ever to

Question :- Under what circumstances is it ethical, if ever, to use consumer information in marketing research? Explain why you consider it ethical or unethical.

What are the differences between four types of economics

What are the differences between four types of economics evaluations and their differences with other two (budget impact analysis (BIA) and cost of illness (COI) studies)?

What type of economic system does norway have explain some

What type of economic system does Norway have? Explain some of the benefits of this system to the country and some of the drawbacks,

Among the who imf and wto which of these governmental

Among the WHO, IMF, and WTO, which of these governmental institutions do you feel has most profoundly shaped healthcare outcomes in low-income countries and why? Please support your reasons with examples and research/doc ...

A real estate developer will build two different types of

A real estate developer will build two different types of apartments in a residential area: one- bedroom apartments and two-bedroom apartments. In addition, the developer will build either a swimming pool or a tennis cou ...

Question what some of the reasons that evolutionary models

Question : What some of the reasons that evolutionary models are considered by many to be the best approach to software development. The response must be typed, single spaced, must be in times new roman font (size 12) an ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As