Answer Posted / prabakaran

$ date

What does sed command do in unix?

566

---

hw will u use awk in replacing cahrs and files

2735

---

Why is it called grep?

563

---

What is the comma to show the space allocation of files?

560

---

What is the difference between grep and grep?

569

---

---

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

---

Write a command to kill the last background job?

619

---

What are filter commands in unix?

555

---

What is grep and how do you use it?

577

---

What is the general format of unix command syntax?

694

---

How do I find previous commands in unix?

594

---

What is nr in awk command?

604

---

What is “chmod” command?

566

---

What is {} in find command?

584

---

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

639

---