Answer Posted / nitika

An OS is an integrated set of specialized programs that are
used to manage over all resources of and operations of the
computer.

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:

1764

---

What will the following command do?

617

---

What do know about tee command and its usage?

591

---

What is grep command in unix with examples?

612

---

Who command in unix?

576

---

---

What is a command and examples?

588

---

Is ‘du’ a command? If so, what is its use?

639

---

What difference between cmp and diff commands?

724

---

Can you enlist some commonly used network commands?

602

---

Is there any method to erase all files in the current directory, along with its all sub-directories, by using only one command?

591

---

What is unix command line?

610

---

What does the md command do?

578

---

Who invented grep?

653

---

What is the unix command to confirm a remote host is alive or not?

583

---

What is the function of grep command in unix?

593

---