Homework Answers
The code will print "hello" only once cuz once the execl() is called the whole process will be replaced by the echo program.
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6. How many times does this code print "hello"? Note that execl is a wrapper over...
(a)How many times does the code snippet given below display "Hello"? int x = 1; while...
(a)How many times does the code snippet given below display "Hello"? int x = 1; while (x != 15) { System.out.println ("Hello"); x++; } (b)What is the output of the following code fragment? int i = 1; int sum = 0; while (i <= 5) { sum = sum + i; i++; } System.out.println("The value of sum is " + sum); Quie 2 What is the output of the following snipped code? public class Test {...
How many times does the message, “Hello” get printed out by the code segment below? int...
How many times does the message, “Hello” get printed out by the
code segment below?
int count = 0;
while (count < 41) {
printf(“Hello\n”);
count = count+3;
}
D Question 2 1 pts How many times does the message, "Hello" get printed out by the code segment below? int count = 0; while (count < 41) printf("Helloln"); count count+3;
In the code below,how many times "Hello" is going to be printed if the user enters...
In the code below,how many times "Hello" is going to be printed if the user enters 15 and 17 respectively? goal = int(input()) for lp in range(0,goal,3): print("Hello")
1-Is it possible to run a program without a main() function? Yes No 2- How many...
1-Is it possible to run a program without a main() function? Yes No 2- How many main() functions can one have in a program? 2 This depends on what compiler you use. As many as you like 1 3- What does the following code fragment leave in x? char a = 'A'; int x = sizeof (a); 1 Depends on what compiler you use. 4 2 4- True or false: In a C program I can have two functions with...
Edit the code (shell.c) given to do the tasks asked! will rate for correct answer! Also,...
Edit the code (shell.c) given to do the tasks asked! will rate
for correct answer! Also, include a screen shot of the output and
terminal window of each command you used. Read carefully to do this
task please.
shell.c code given below.
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/wait.h>
#include <string.h>
int main()
{
int PID;
char lineGot[256];
char *cmd;
while (1){
printf("cmd: ");
fgets(lineGot, 256, stdin); // Get a string from user (includes \n)
cmd = strtok(lineGot, "\n");...
1. How many times does the message, “Hello” get printed out by the code segment below?...
1. How many times does the message, “Hello” get printed out by the code segment below? int count = 0; while (count < 32) { printf(“Hello\n”); count = count+4; } 2. What is the value of sum at the end of the following code segment? int sum = 0, index; for (index = 0; index < 5; index++) sum += 5; Group of answer choices
I have the following code in C: void sighandler(int sig) { printf("exiting child..."); } int...
I have the following code in C: void sighandler(int sig) { printf("exiting child..."); } int main(int argc,char* argv[]) { if(argc > 1) { char* commandName; for(int i=2;i { forkChild = fork(); signal(SIGINT,sighandler); if(forkChild == 0) { execlp(commandName,commandName,argv[i],NULL); exit(0); } else { wait(NULL); } } My problem is that I would like to kill the child with ^C but leave the parent running....
C programming Question1 (a) Write a C program that will print out all command line arguments,...
C programming Question1 (a) Write a C program that will print out all command line arguments, in reverse order, one per line. Prefix each line with its index. 6 marks] (b) Consider this C code snippet int a- 100 int b- 42; inte p- &a; int q-b; p qi printf ("%d %d\n" ,a,*p); When this code is executed, what numbers will it print? [2 marks] (c) Consider this C program int main(int argc,char argv) char* target- "Apple" char vord[100] printf...
The original code using the gets() function is written below. You need to do (a) change...
The original code using the gets() function is written below. You need to do (a) change the provided code so that you now use fgets() function to obtain input from the user instead of gets(), (b) make any other necessary changes in the code because of using fgets() function, and (c) fill in the code for the execute() function so that the whole program works as expected (a simple shell program). Note: part c is already done, and the execute...
Hello, how can i compile this C code using option -std=c99 or -std=gnu99 #include <stdio.h> #include...
Hello, how can i compile this C code using option -std=c99 or -std=gnu99 #include <stdio.h> #include <stdlib.h> #include <string.h> #include <ctype.h> #include <unistd.h> #include <sys/types.h> #include <sys/wait.h> #include <sys/stat.h> #include <fcntl.h> static char* args[512]; pid_t pid; int command_pipe[2]; static void waiting(int n); static int command(int input, int first, int last) { int fd[2]; int flag=0; pipe( fd ); pid = fork(); if (pid == 0) { for(int i=0;args[i]!=0;i++) { if(args[i][0]=='>') { fd[1]=open(args[i+1], O_CREAT|O_TRUNC|O_WRONLY, 0644); flag=1; } if(args[i]=='>>' ) { fd[1]=open(args[i+1],...
How many times does the message, “Hello” get printed out by the
code segment below?
int count = 0;
while (count < 41) {
printf(“Hello\n”);
count = count+3;
}
D Question 2 1 pts How many times does the message, "Hello" get printed out by the code segment below? int count = 0; while (count < 41) printf("Helloln"); count count+3;
Edit the code (shell.c) given to do the tasks asked! will rate
for correct answer! Also, include a screen shot of the output and
terminal window of each command you used. Read carefully to do this
task please.
shell.c code given below.
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/wait.h>
#include <string.h>
int main()
{
int PID;
char lineGot[256];
char *cmd;
while (1){
printf("cmd: ");
fgets(lineGot, 256, stdin); // Get a string from user (includes \n)
cmd = strtok(lineGot, "\n");...
C programming Question1 (a) Write a C program that will print out all command line arguments, in reverse order, one per line. Prefix each line with its index. 6 marks] (b) Consider this C code snippet int a- 100 int b- 42; inte p- &a; int q-b; p qi printf ("%d %d\n" ,a,*p); When this code is executed, what numbers will it print? [2 marks] (c) Consider this C program int main(int argc,char argv) char* target- "Apple" char vord[100] printf...
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