What does the exit command do

Assignment Help Computer Engineering
Reference no: EM131876593

Problem

1. What does the exit command do? Why doesn't it log you out when run in your login shell like this? ( exit ).

2. The cron facility on your system is not working. How do you check whether the process is running at all and whether you are authorized to use cron?

3. The administrator has decided that most users will be allowed to use at and cron. What should she change that requires minimum effort?

Reference no: EM131876593

Questions Cloud

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 ).
What is the difference between a job and a process : What is the difference between a job and a process? How do you suspend the foreground job and move a suspended job to the background.
What is a zombie and how is it killed : What is a zombie, and how is it killed? What is the difference between a process run with & and one run with nohup?
What are the reasons to maintain domestic manufacturing : New balance performed 25% of its manufacturing in the United states at a time when nearly all of tis competitors were manufacturing 100% of their products.
How is a process created : How is a process created? Mention briefly the role of the fork and exec system calls in process creation.

Reviews

Write a Review

Computer Engineering Questions & Answers

  What are some of negative implication of participatory media

CMST 301- What are some of the negative implications of participatory media? Provide specific examples and cases. How has the increase in digital media resulted in an increase in ‘multi-tasking'?

  Find the spring constants for each of two springs in series

The spring constant k is the force F divided by the amount x the spring stretches (k = F/x). See Fig. (a). For two springs in series (see Fig. (b)).

  Create an executive summary to introduce company

Create an Executive Summary to introduce your development "company", review the problems to be solved (this is not just copying the Case Study but an analysis of the real problems) and outlining a computer solution for the case study

  Make a `show me'' button that displays the number

Write down a GUI program that is a game to be played by the user. A new employee is working on a classified mission and the program will randomly pick an expected profit to be guessed by the user. The program must randomly select a number within r..

  Implementing different functions

Function celsius returns the Celsius equivalent of the Fahrenheit temperature utilizing the calculation C= 5.0/9.0 * (F-32);

  Which of the following is an invalid wifi standard

Which of the following is an invalid wifi standard?

  Designing program

Write down a Program that lets the user enter an amount as a float value representing a total in the dollars and cents.

  What punctuation can be removed to determine terms

What punctuation can be removed to determine terms? What stop words can be removed? Which tokens can be converted to lower case?

  Create constructors use the same exception handling

Date objects must store the date in two int instance variables: day and month, and it has to include the String instance variable, error, initialized with null.

  How many arithmetic operations use in gauss-jordan reduction

About how many arithmetic operations are used in Gauss-Jordan reduction? What is the effect on the corresponding simultaneous equations?

  Describe how to implement the heap-sort algorithm

Describe how to implement the heap-sort algorithm using, at most, six integer variables in addition to an input array itself.

  Read the case study titled a patient information system

read the case study titled a patient information system for mental health care located in chapter 1 of your textbook.

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