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develop a C program for Linux calledpipes.c that does the following:
In the main() function, it creates a pipe using the pipe() function, then creates two child processes with fork(). Child 1 redirects stdout to the write end of the pipe and then executes with execlp() the "ls -al" command. Child 2 redirects its input from stdin to the read end of the pipe, then it executes the "sort -n -k 5" command.
After creating both children, the parent process waits for them to terminate before it can exit.
Note that you may have to create Child 2 first, followed by Child 1.
The parent program does the same thing as a shell that runs the command "ls -al | sort -r -n -k 5".
You must use the fork(), pipe(), dup2(), close(), execlp() functions (or other exec() variation). You can edit your program with the geditapplication, available from the command line. Or install emacs using command "sudo apt-get install emacs" and learn to use it.
When I develop a destructor, do I require to explicitly call the destructors for my member objects?
Project Overview A certain financial institution (bank) wishes to promote its new business products/services by conducting road shows in rural areas. Their aim is to encourage peop
Write a C program to input five numbers and print them out on a new line e.g 5, 10, 15, 20, 25 displayed as 5 10 15 20 25 #include stdio.h void main() {
#include void func(int num, b=5) { auto int total=0; static int sum=0; for ( int i=num; i>0 ; i--) total+=i; sum+=total; cout
decoding message
The following is the formula that can be used to complete that calculation: Monthly Payment = Monthly Interest Rate / (1 - (1 + Monthly Interest Rate) -Payment Interval )) *
Objective: Construct a C program that controls the LCD display, and is capable of displaying strings. Add functions to the C program that allows more control over the display.
(a) Write a procedure called (area-of-rectangle h w) that computes the area of a rectangle of height h and width w. (b) Write a procedure called (area-of-circle r) that computes
Implementation of the Definition class: void Definition::put_word(char *s) { word = new char[strlen(s)+1]; strcpy(word,s); nmeanings = 0; } voi
Produce a pseudo code to be used for development compute and display some data on the bounces a ball will make when dropped from a given height. To simplify the problem, you ass
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