Write a shell script containing only one statement

Assignment Help Computer Engineering
Reference no: EM131876597

Problem

1. Write a program that accepts two small numbers (< 50) as arguments and then sums the two in a child process. the sum should be returned by the child to the parent as its exit status, and the parent should print the sum.>

2. Write a shell script containing only one statement: exit 123456. Run the script and then invoke echo $? from the shell. Explain why the value provided in the script is different from the output.

Reference no: EM131876597

Questions Cloud

What is the total annual cost of setting up production runs : The new Toyota production plant starting up in Guanajuato, in central Mexico would be manufacturing a radical new Corolla Compact that will go on sale in 2020.
Write a program that displays all environment variables : Write a program that displays all environment variables. Write a program that sets an int variable x to 100 before forking a child.
What is role of memory management unit in process switching : What is the role of the Memory Management Unit in process switching? Why can't one process corrupt the address space of another?
Explain why a pipe can connect two related processes only : Why can't a background process be terminated with the interrupt key? Explain why a pipe can connect two related processes only.
Write a shell script containing only one statement : Write a shell script containing only one statement: exit 123456. Run the script and then invoke echo $? from the shell.
Write program that display pids and ppids of three processes : Write a program that forks twice. Display the PIDs and PPIDs of all three processes. Write a program that executes command wc -l -c /etc/passwd using execl.
Estimate the process mean and standard deviation : Set up X? and R control charts using these data. Does the process exhibit statistical control?
Why does a process voluntarily relinquish control of the cpu : When and why does a process voluntarily relinquish control of the CPU? What is the value returned by fork? Why was it designed to behave that way?
What does the exit command do : What does the exit command do? Why doesn't it log you out when run in your login shell like this? ( exit ).

Reviews

Write a Review

Computer Engineering Questions & Answers

  Mathematics in computing

Binary search tree, and postorder and preorder traversal Determine the shortest path in Graph

  Ict governance

ICT is defined as the term of Information and communication technologies, it is diverse set of technical tools and resources used by the government agencies to communicate and produce, circulate, store, and manage all information.

  Implementation of memory management

Assignment covers the following eight topics and explore the implementation of memory management, processes and threads.

  Realize business and organizational data storage

Realize business and organizational data storage and fast access times are much more important than they have ever been. Compare and contrast magnetic tapes, magnetic disks, optical discs

  What is the protocol overhead

What are the advantages of using a compiled language over an interpreted one? Under what circumstances would you select to use an interpreted language?

  Implementation of memory management

Paper describes about memory management. How memory is used in executing programs and its critical support for applications.

  Define open and closed loop control systems

Define open and closed loop cotrol systems.Explain difference between time varying and time invariant control system wth suitable example.

  Prepare a proposal to deploy windows server

Prepare a proposal to deploy Windows Server onto an existing network based on the provided scenario.

  Security policy document project

Analyze security requirements and develop a security policy

  Write a procedure that produces independent stack objects

Write a procedure (make-stack) that produces independent stack objects, using a message-passing style, e.g.

  Define a suitable functional unit

Define a suitable functional unit for a comparative study between two different types of paint.

  Calculate yield to maturity and bond prices

Calculate yield to maturity (YTM) and bond prices

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd