Answer Posted / durgesh srivastava

A kernal is a heart of a operating sysyetm which can be
directly attach with hardwre and control both platefom s/w
and h/w.and situated b/w shell and hardware.

What is grep command in unix with examples?

1134

---

What is the behavioural difference between cmp and diff commands?

1211

---

What do chmod command do?

1136

---

What is a command and examples?

1150

---

Why is grep called grep?

1230

---

What are the differences among a system call, a library function, and a unix command?

1146

---

Enlist some filename manipulation commands in unix.

1082

---

How do I clear my terminal history?

1087

---

What is updatedb?

989

---

Name the general commands in using unix os for a beginner?

1088

---

How to display no of records in oracle using unix command?

1100

---

What do know about tee command and its usage?

1121

---

Are you in or at the office?

1071

---

Give the command for finding the current date.

1034

---

When i run a programm of orphan process. Instead of getting child's parent (ppid)=1 ..i get 1400 and it varies as per system. How can i findthe right soluion??? My pgm: #include # include int main() { int pid; pid=fork(); if(pid < 0) {exit(-1);} else if(pid==0) { printf("Child Process is Sleeping ..."); sleep(10); printf("Orphan Child's Parent ID : %u ",getppid()); } else { printf("Parent Process Completed ... %u ",getpid()); exit(0); } return 0; } Output:

2201

---