Linux MCQ Questions & Answers | Computer Science

#include<stdio.h>
#include<fcntl.h>
 
int main()
{
    int fd, count;
    char ch[10];
    fd = open("example.txt",O_RDWR|O_CREAT);
    write(fd,"linux",5);
    lseek(fd,2,SEEK_END);
    write(fd,"man",3);
    lseek(fd,0,0);
    count = read(fd,ch,10);
    printf("%s\n",ch);
    return 0;
}

#include<stdio.h>
 
int main()
{
    int fd[3],count;
    if (pipe(fd) != 0)
        perror("pipe");
    count = write(fd[2],"Hello",6);
    printf("%d\n",count);
    return 0;
}